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Biological Therapies

Wow, we went over a lot in the biological school.  We learned about the structure on a neuron, about different types of neurotransmitters, we broke down the nervous system, and then we broke down all of out senses and started to explore how we perceive the world through our senses.  But now lets get the the practical part of the biological school.  If you have some sort of psychological disorder (you should know them from the abnormal psychology unit), how would this school attempt to deal with the disorder.  In other words, what is the biological schools form of therapy?

Ok, we know that the crux of the biological school is that behaviors (including disorders) have a organic cause.  Whether it is an imbalance of neurotransmitters, hormones or damaged brain structure, the reasons must come from the body.  The most common way the biological school handles these issues is through psychopharmacology, also know as chemotherapy, or as we call it, drug therapy.

Some psychological disorders are always treated with drugs, like schizophrenia.  Schizophrenia is generally treated with antipsychotic drugs such as Thorazine or Haldol.  These drugs generally block the receptor sites for the neurotransmitter dopamine (dopamine reuptake inhibitors).  You should know why if you remember the link that dopamine and schizophrenia have from previous chapters.  The problem with these drugs is that they often have Parkinson like muscle tremor side effects called tardive dyskinesia.

Mood disorders are also often treated with drugs.  The most common types of drugs that are used to treat depression (unipolar) are tricyclic antidepressants (Adapin or Elavil), monoamine oxidase (MAO) inhibitors (Nardil or Marplan) and serotonin reuptake inhibitors drugs (Prozac).  All these drugs tend to increase the activity of the neurotransmitter serotonin.  Lithium, a metal, is most often used to treat bipolar disorder.

Anxiety disorders (phobias, GAD or panic attacks) are most often treated with anti-anxiety drugs with depress the nervous system.  Barbituates such as Valium or Xanax are most common.

Alternative Biological Therapies

Believe it or not, drugs are NOT the only way the biological school handles disorders.  One example is electroconvulsive therapy (ECT) where an electrical current is passed through the brain of a patient.  Most often the current is passed through only one hemisphere, because although two hemispheres is more effective, there can be some negative side effects, such as loss of memory.  Although ECT has been used to deal with all types of disorders, it is most commonly used today for severe depression.  We still have no idea why it works (imagine the first doctor to think up “hey maybe shocking the crap out of the guy will make him better”), but we think it has to do with blood flow to the brain.

It is rare, but sometimes doctors may use psychosurgery.  This is where a portion of the brain is lesioned or destroyed to alter a person’s behavior.  This type of surgery is only used as a last resort.  One of the first and most widespread types of psychosurgery was the prefrontal lobotomy, where the neural connection to the frontal lobe are cut from the rest of the brain.  This procedure calmed patients down immensely, but left many in a semi-vegetative state.

Changing ones diet may be the best way to alter ones psychological state- so eat less sugar and grease and you will be happier (honestly, I just came back from City Island where I had about two pounds of fried shrimp and 4 virgin pina coladas- I am a bad example).

Some students say this school is the most difficult part of the whole course.  It may have alot of material, but at its core, it is the most simple.

The Biological Perspective views all behavior as a product of the body.

In other words, your emotions come from either 1. neurotransmitters (natural chemicals in our body that help us feel), 2. the brain or 3. our body chemistry (our glucose levels, diet etc…).

For example, if a person is suffering from depression, a psychologist from the biological school would examine the body to see what physiological grounds exists that is causing the depression.  There you go- that is the introduction…that is enough for today.

Quick Reminder: Now that we have learned about how we grow (developmental psychology) and what can go wrong with us as we grow (psychology disorders) it is time to examine these processes through the different schools/perspectives of psychology.

For example, we learned what phobias were in the last unit.  But we never discussed how people get phobias, or more importantly, how do we cure them?  Each perspective/school of psychology looks at our development and abnormalities differently.  Thus, each school/perspective has it’s own type of therapies.  If by the end of this course you can look at a psychological disorder and tell me how each one of the schools would view and deal with the problem, then you understand the central theme of this class.  Now on to the first perspective/school…

Psychoanalytic Perspective of Psychology

The central them behind the psychoanalytic perspective is that our personality (likes, dislikes, good and bad parts about us) comes from a deep hidden place within us called the unconscious.

Much of our unconscious is formed in our childhood- thus childhood development is central to understanding our behaviors.  These ideas were all started by Sigmund Freud.

Freud was hanging out in Vienna, talking to his children and flirting with the wealthy women of the city, when he came up with his theory of our personality.

For simplicity sake, lets call it the iceberg theory.

Remember that movie with that really cute guy, the Titanic (ever guy has seen this movie, even if you won’t admit it- and you probably cried too).

Why did the Titanic sink?

An iceberg.  But the iceberg looked so small in the movie, and the titanic was so big, so how did the iceberg kick the bejesus out of the big steel boat?

That’s right: like 90% of the iceberg is below the surface of the water.  According to Freud the same goes for our personality.  The part of the iceberg that you see is your:

• Conscious level: information about yourself and your environment that you are currently aware of.

The part of the iceberg located just below the surface is your:

• Preconscious level: information about yourself that you are not currently thinking about (in your conscious level), but could think about.  If I asked you what your favorite food was you would bring the information from your preconscious to your conscious because you know what the food was, but probably was not thinking about it at that time.  My favorite food in moist pumpkin bread with no nuts or a good peanut butter and jelly sandwich.

Most of the iceberg is located deep below the surface and that represents your:

• Unconscious level: events and feelings that we find unacceptable for our conscious minds.  We do not have access to our unconscious.  these thoughts stay hidden (repressed) but make up most of who we are.  As we will find out, the key to psychoanalytic therapy is to find ways to delve into the unconscious.

Freud also believed that our personality (psyche) was made up of three drives (id, ego and superego).  Each drive is hidden in a part of the iceberg.  I will start with the drive we first develop.

• Id: When a baby is first born, their whole personality is made up of an Id.  The Id is your animalistic and most basic instincts.  The ID is located in your unconscious so you are largely unaware of it.  A baby wants to eat and feel good and avoid pain- and that is it.  thus the id works on what Freud called the pleasure principle (the notion that your sole objective is to strive for pleasure and avoid pain).  Lets pretend that right now all you have is an id and you see a hot man/woman walking down the street.  What would you do?  Well, if you just have an id, you would just jump them- take them right there (some therapist say people in prison have really powerful ids).  But most of you will not just jump them- that is because you have developed other aspects of your psyche (personality).
• Ego: the is the boss or executive part of your personality.  The ego is located in our conscious so it is the part of our personality that we are aware of and everyone sees.  When you say that you know your best friend- you really only know their ego.   Its job is to satisfy the id while understanding the limitations of the environment.  It works on what Freud called the reality principle- how can I function in the real world.
• Superego:  This part of our personality develops last and is located in the preconscious.  The superego is our morals and our sense of right and wrong.  The superego develops around the age of 8 and is learned from out parents, peers and TV.  The ego (the boss) often mediates between the id and superego.  the balancing act between the three forces makes up who you are.

Now Freud believed that the id, ego an superego battle during our psychosexual stages of development which we learned in a previous chapter (oral, anal, phallic, latency and genital).  Just remember, in those stages, our libido (sexual energy or drive) is focused on a different erogenous zone.  Oh I don’t trust you to remember; here is the except from the developmental psychology chapter:

Sigmund Freud

Freud (his friends called him Siggy) is probably the most recognizable psychologist of all time.  He is the father of the psychoanalytic school of psychology and we WILL discuss him in MUCH more detail when we discuss the psychoanalytic school.  But Freud did talk about social development and stated that all of us go through what he called five psychosexual stages.

Now when you think about sex, you think about using your genitals for stimulation, rated R, late night Cinamax sex.  However to Freud, sex was a concept that explained how we get our pleasure from the world.  For most of you, although your parents would hate to think about it, your sexual pleasure comes from your genitals.  But to younger children they do not.  Freud believed that we all have a libido, or instinctual sexual energy.

Your libido changes throughout your lifetime, focusing on different parts of your body.  Essentially, your libido has 4 stages of metamorphosis.  If some outside force deters our social development in one of the following stages, Freud said we could become fixated in that stage, meaning that we would become preoccupied with that earlier stage later on in our lives.  Lets explain the stages and see if we can get this to make some sense.

1.Oral Stage: About 0-2 years old, an infants libido is focused around their mouth.  You will notice that babies see the world through their mouths.  If I give my 8 month old son some dog vomit, the first thing he will do is taste it.  Freud believe that if you become fixated in the oral stage than you may overeat, smoke, or just have a childhood dependence on things.

2. Anal Stage: About 2-4 years old, the child becomes focused on controlling bowel movements (crapping).  The libido is focused on holding in and releasing defecation (poo poo).  This usually occurs during toilet training. The child meets the conflict between the parent’s demands and the child’s desires and physical capabilities in one of two ways: Either he puts up a fight or he simply refuses to go. The child who wants to fight takes pleasure in excreting maliciously, perhaps just before or just after being placed on the toilet. If the parents are too lenient and the child manages to derive pleasure and success from this expulsion, it will result in the formation of an anal expulsive character. This character is generally messy, disorganized, reckless, careless, and defiant. Conversely, a child may opt to retain feces, thereby spiting his parents while enjoying the pleasurable pressure of the built-up feces on his intestine. If this tactic succeeds and the child is overindulged, he will develop into an anal retentive character. This character is neat, precise, orderly, careful, stingy, withholding, obstinate, meticulous, and passive-aggressive. The resolution of the anal stage, proper toilet training, permanently affects the individual propensities to possession and attitudes towards authority.

3. Phallic Stage: About 4-6 years old, the child first realizes his or her gender.  In other words, the boy says “look I have an extra finger, Sally where is yours, you freak!!!”. The libido is focused on exploring the penis and vagina (playing doctor- I have fond but disturbing memories of a plastic fisher price med kit) but not in the way you now think about playing with your genitals (you pervert).

During this stage Freud believed that boys can develop an Oedipus Complex, where he begins to have sexual feelings towards his mother (not the “Mom, I want to see you in a pink thong” feeling, but more like I want to be with you on my phallic stage level).

The girl can develop and Electra Complex, where they want to be with the father.  In particular, they develop what Freud called penis envy, or the idea that every woman wants to have a male penis (why did I say male, is there a female penis?).

During these complexes the children often have hateful feelings toward the same sex parent and the stage ends with a “if I can’t beat them, I’ll join them attitude toward that same sex parent.  Now I believe that penis envy has merit, not because I love my penis and think that of course every person would want to have it, but rather, the penis may represent what men have in society and women do not; power.

4. Latency Stage: About 7-11 year olds develop the need to just hang around peers of their own gender.  You might as well call this the “cootie stage”.  Circle circle dot dot now I have my cootie shot.  This is the stage when the libido is hidden in the unconscious (this will be a big topic later) and sexuality is repressed (hidden).  But the libido makes a grand entrance in the next stage.

5. Genital Stage: From about 12 until death, this is the stage you are probably all in now (if not, don’t worry, your time will come).  Here the libido,sexual energy, is focused on your genitals and sex is as you think about it now.  Freud considers fixation in this stage normal- Congrats!!!!

Now we will be going over Freud a lot more later.  Just remember that his theories have some issues.  First, he lived in Vienna, Austria (not Australia dumb ass- it is a whole different continent!!!) and he studies himself, his children and rich white woman in Europe.  Are their thoughts generalizable to the rest of the global population?  Probably not.  Next, his theories cannot be tested, so it is hard to consider them true science.  But they make for cool conversation and many great ideas came from his wacky drugged out mind (yes he did drugs).

Defense Mechanisms

One of the most important contributions of Freud is the idea of defense mechanisms.  Freud believed that our ego hates feeling hurt and will takes steps to defend itself through various strategies called defense mechanisms.

Before I go through the important ones, realize that we are NEVER consciously aware we are exhibiting a defense mechanism.  Once we become aware of why we exhibit the behavior it ceases to be a defense mechanism (one of the goals of Psychoanalytic therapy is to make you see your own defense mechanisms so you can see where your issues truly are).

Let’s use an example to help explain defense mechanisms.  My wife, Kathy, decides to leave me for Screech (from Saved From the Bell).

I am devastated and my ego can choose from a variety of ways to protect itself.

Now Freud believed that many of our psychological problems come from our unconscious and our ego’s inability to deal with stress, resulting in the above defense mechanisms.

Freud also believed that to understand the root of a psychological problem, you much delve into the unconscious.  But how does one delve into the unconscious (that section of the iceberg is hidden to us).

Exploring the unconscious

Freud had three main ways that he was able to explore people’s unconscious:

• Dream Interpretation: Freud was a big believer that dreams were a gateway into the unconscious.  He even published a book called “Interpretation of Dreams) devoted solely to understanding the unconscious through dreams.  Freud believed that every dream has both latent and manifest content.  Manifest Content is the storyline of a dream.  Latent Content is the underlying meaning of the dream.  For example, if I dreamt I was making out with Jennifer Lopez but them she turned into a marshmallow coated squirrel, that would be the manifest content.  The latent content would be how the dream is interpreted- maybe the squirrel represented my wife and the marshmallow represented how sweet I think she is, or maybe the marshmallow represented how I feel stuck in a relationship.  By the way, do you see already how dangerous this type of therapy can be.  If my therapist interprets the latent content of my dream, but is wrong, I may really screw up my life.

• Hypnosis: Freud used hypnosis to enter the unconscious of his patients.  Hypnosis is simple a state of heightened suggestibility.  People that are more likely to become hypnotized are those with rich fantasy lives (if you like the Lord of the Rings- then you can be hypnotized), it has nothing to do with intelligence.

Although Freud did not talk about how he practiced hypnosis, let me take a couple of minutes to tell you the basics of hypnotism.

Hypnotic suggestibility is how easily you can be hypnotized (remember- rich fantasy lives).  After you awake from being hypnotized, you do not remember what it was like under the hypnotic state; this is called posthypnotic amnesia.  There are three theories of hypnosis.  First, role theory states that hypnosis is not an alternate state of consciousness, but rather people just play the part and get into the game.  Second, state theory states that hypnosis is an alternate state of consciousness and we are really NOT aware of our surroundings when under the hypotonic trance.  The last and most important theory is called dissociation theory by Ernest Hilgard.  Hilgard stuck the arms of people under the hypnotic trance in freezing cold water.  The water should have caused pain, but the people did not react.  However, when Hilgard asked them, still under hypnosis, to lift a finger if they feel pain, they lifted the finger.  He showed us that there is what Hilgard called a hidden observer in all of us.  A part of our consciousness feels the pain, even though other parts do not, thus the name dissociation theory.  Finally, hypnosis today is most effective in the field of pain control.

• Free Association: One of Freud’s most popular techniques to delve into the unconscious, free association is still used today by some therapists.  Do you say everything that pops up in your head?  Probably not- if you did people would either think you were really cool or you would be arrested.  We have these filters that help us to hold back much of what comes into our head and we then choose what to say.  

Free association is the idea that is you just lay down, not facing the therapist, and ramble on and on- for hours- then weeks and months (with breaks of course) eventually burps of your unconscious would begin to surface. The filter keeps your unconscious repressed.  Freud attempted to remove that filter by having the patient just talk about whatever pops up in their head- he would take notes and they would discuss the highlights later in therapy.

Transference

One issue Freud warned therapists about was the issue of transference.  Transference occurs when a patient shifts the feelings that come out in therapy onto the therapist (a la Sopranos).  If the patient is using free association to bring up deep sexual feelings they have for their siblings hidden in their unconscious, they might transfer those sexual feelings on to the therapist.

Criticisms of Freud

Most significantly, there is no way to empirically prove that psychoanalytic therapy works, or even that the id, ego superego and all the other aspects of our personality according to Freud even exist.  Mistakes can easily be made by the therapist when trying to pull out the latent from the manifest content.  Some say Freud overemphasize the importance of both childhood and sex on our development and personalities.  Last, feminists, such as Karen Horney (yes, that is her real name), question Freud’s notion of penis envy.  Horney even stated that men are more envious of women because they can have children, womb envy, than women can ever be of the penis.

The Neo-Freudians

There was a large school of psychologists that took parts of Freud’s ideas and expanded upon them.  they are called Neo-Freudians and the ones you should know are Erik Erickson (we learned about him under developmental psychology), Alfred Adler and Carl Jung.

• Alfred Adler: Adler downplayed the importance of the unconscious and sex as drives in our development.  Instead he took from Freud the concept of the ego.  Adler was picked on as a child and as he grew older he believed that people are motivated not by sex (as Freud would say) but by their fear of failure; which he termed inferiority.  People are fear of feeling inferior (where we get the term inferiority complex) and instead want to develop a sense of superiority.  He was also one of the first psychologist to emphasize the importance of birth order in shaping personality.
• Carl Jung:  He loved Freud’s notion of the unconscious.  He went on to argue that the unconscious is actually divided up into two parts, the personal unconscious and the collective unconscious.  The personal unconscious is the same thing Freud called the unconscious (personal thoughts that you cannot deal with, so you push them away).  What made Jung unique was his idea of the collective unconscious.  The collective unconscious is passed down through the species and, according to Jung, explain certain similarities we see between all cultures.  The collective unconscious contains archetypes that Jung defined as universal concepts we all share as part of the human species.  For example, the concept of a shadow represents the evil side of the personality regardless of the culture.  In every culture there are heroes and villains in their stories and they all share the same traits.  Maybe these are universal ideas that we share in our collective unconscious.

Psychoanalytic Therapy Today

Although most therapist are eclectic, aspects of psychoanalytic therapy are still very popular today.  The idea of the unconscious is still very prevalent and free association and hypnosis are avenues still used to delve into that dark world.  Over the past few decades a new breed of psychoanalytic tests have sprung up called projective tests.

Projective tests are any type of test that is used to examine the unconscious.  The two most popular projective tests today are the Thematic Apperception Test (TAT) and the Rorschach Inkblot Test.

Thematic Apperception Test:

• More commonly called the TAT test, this projective test gives the subject a series of ambiguous pictures (see below).

• The subject is then asked what is going on in the picture.  How does the person in the picture feel?  What is the person in the picture thinking? etc..

• The subject’s answers to the questions are the manifest content.

• From the answers, the therapist tries to interpret the latent content from the subject’s answers.

• The therapist is looking for themes in the subject’s answers and hopefully will be able to glimpse at what some of the pressing issues are in the subject’s unconscious.

Rorschach Inkblot Test

• This projective test involves giving the patient a series of ambiguous inkblots (see some examples below).

• The therapist is once again listening to the patients manifest content and trying to interpret the latent content from the story.
• If for example my manifest content from the four pictures is (starting from left to right) two seeing horses rubbing butts, a four armed boxer alien with two penises, two seahorses comparing penises, and an alien looking at a penis; the therapist would look at the theme of my manifest content (figure it out for yourself) and put together the latent content and hoping that it reflects issues in my unconscious.

One last thing concerning psychoanalytic therapies.  The reason that they came up with all these techniques, like free association, projective tests etc.., is that people are not able or do not want to open their true selves up.  Psychoanalytic therapists call this resistance.

So a quick summary- Psychoanalytic perspective= weird sexual thoughts (libido) + childhood = unconscious….want to get better, bring out those hidden screwed up feeling in the unconscious.

Before I get started in AP Psychology I need to know that….

My teacher was a schmoolie in high school!!!

I discovered I was an schmoolie in high school.  I started dating my first girlfriend in the spring of my sophomore year.

Here is a photo of her from high school (yeah right).  Well it looks just like her!!!!

 Everything was going great.  She was pretty, she loved me and since she was more popular than I was, I looked cool dating her.  Then came winter break of my junior year.  I went to Florida to visit the grandparents (like half of you still do).  While hanging out in the old age community, I met this 16 year old girl from Maryland and I ended up cheating on my girlfriend.  I told her as soon as I got back to New York.  She proceeded to break up with me, date a guy I REALLY did not like (he looked like a horse) and make out with him in front of me every chance she got.  I stopped going to classes, wrote a lot of bad poetry and truly believed my life was over. We got back together two months later and dated until I cheated on her again my freshman year of college.

Halfway through college, between fraternity parties, I began to ask myself some substantial questions.  Why did I cheat on her in Florida?  Why did I tell her?  Why did she date the horse guy?  Why did I feel like I was going to die without her?  If she meant so much to me, why did I cheat on her again in college?  Were we all just schmoolies?

When my mother couldn’t answer these questions, I did the next best thing; I took my first psychology class.

Hoping to satisfy their curiosity about people and to remedy their own woes, millions turn to “psychology.” They watch Dr. Phil, listen to talk-radio counseling, read articles on psychic powers, attend stop-smoking hypnosis seminars, and absorb self-help books on the meaning of dreams, the path to ecstatic love, the roots of personal happiness.

Others, intrigued by claims of psychological truth, wonder: Do mothers and infants bond in the first hours after birth? Should we trust childhood sexual abuse memories that get “recovered” in adulthood? Are first-born children more driven to achieve? Does handwriting offer clues to personality? Do my dreams really mean anything?

Why take AP Psychology?

See which one works for you…..

• I have a desperate curiosity to learn the inner workings of human behavior.
• I want to take as many AP courses as I can so my transcript makes me look really smart.
• I want to learn to pick up chicks.
• I want to learn to pick up guys.
• I want to skip a course in college and save myself (really my parents) some money.

For those of you that complain about the $70 exam fee, just know on average a student saves $2800 per AP exam passed.

The exams are scored on a scale 1 through 5.

• A five means you say to yourself “I am psychology god and should be worshipped daily with sacrifices of small animals”.
• A four means you say to yourself “I know my stuff and can manipulate people and bend them to my will.
• A three means you say to yourself ” I know just enough to get a solid C in college”, (the last of the non-embarrassing scores).
• If you get a 2 you will say “I could have passed if I didn’t spend the night before the exam watching O.C. reruns”.
• If you get a 1 you will probably say “What is sicologi?”.

If you want to know what scores your college of interest accepts just click here.

What in the blazes is “Psychology”?

Just so that you feel you have learned something so far I am going to tell you what the modern definition of psychology is and how it came about.  A really long time ago (1870’s) a scientist with a cool name, William Wundt, opened up the first psychological laboratory in Germany.  Wundt spent his time measuring how fast you responded to stimuli (like how fast you will fall asleep when math class starts).  Wundt believed that psychology was a study of what goes on inside of our minds or as he called it our “mental processes”.  In the early 1900’s an American psychologist came along named John Watson.  Watson did not care what went on inside of your head, but rather he was concerned with the behavior that you exhibited.  You cannot observe a sensation, a feeling, or a thought, but you can observe and record people’s behavior as they respond to different situations.

My son Caleb chooses to ram his head into adult crotches when he becomes upset.  Wundt would focus on Caleb’s feeling of anger, while Watson would only focus on the crotch destroying behavior.  Melding together Wundt and Watson’s concepts we have our definition; Psychology is the science of mental processes and behavior.  Let’s unpack this definition. Behavior is anything an organism does—any action we can observe and record. Yelling, smiling, blinking, sweating, talking, and questionnaire marking are all observable behaviors. Mental processes are the internal subjective experiences we infer from behavior—sensations, perceptions, dreams, thoughts, beliefs, and feelings.

Whatever Mr. Kaplan, this all sound good, but how am I going to learn this stuff?

Emotion

Emotion is at the heart of who we are as people.  It is a reflection of our mental state.  For the AP exam you will have to be aware of three different theories that try to explain how and why we have emotions.

James-Lange Theory of Emotion

William James and Carl Lange theorized that we feel emotion because of biological changes caused by stress.  So if I jump out and scare the behoovies out of you, your heart begins to race and that bodily change causes you to feel fear.

Cannon-Bard Theory of Emotion

Walter Cannon and Philip Bard doubted the James-Lange order of events.  They stated that if you are really excited or scared, you body reacts with the same changes (elevated heart and respiratory rate etc…).  They theorized that the biological change and the cognitive awareness of the emotional state occurred simultaneously.  Cannon believed that the thalamus (switchboard in the brain) send information from the environment simultaneously to the autonomic nervous system (for body changes) and cerebral cortex (emotional state).  Cannon had a good concept but he overestimated the role of the thalamus and underestimated other brain structures such as the amygdala, in the formation of emotion.

Two-Factor Theory of Emotion

Stanley’s Schacter’s two-factor theory explains emotions in a more complete way that the other two theories mentioned above.  Two-factor theory demonstrates that emotion depends on the interaction between two factors, biology and cognition. The idea behind this theory is that you first experience physiological arousal (biology) and then find a label in our mind (cognition) to explain the emotion.  For example, if you are feeling unwell, you may deduce the illness from the symptoms.  This theory explains that your biological state will interpret emotions differently.  If I go for a jog and you lay in bed, my heart rate is more elevated.  Then somebody jumps out and scares us.  I will experience greater fear because my heart rate is already elevated and when I interpret what my body is feeling, it will feel like a worse fear.  The same goes for feelings of love.  If you want to experience more passionate feelings, tell your boyfriend/girlfriend how you feel just after you have worked out.

Stress

I really did not know where to put stress so I guess it kind of fits under emotion.  Obviously too much stress is bad for us (although the Yerkes-Dodson Law says some is OK for optimum performance).

Psychologists often use factors such as reaction to stress to divide up people’s personality types.  One such division is Type A and Type B personalities.  Type A personality is a set of characteristics that includes being impatient, excessively time-conscious, insecure about one’s status, highly competitive, hostile and aggressive, and incapable of relaxation. Type A individuals are often highly achieving workaholics who multi-task, drive themselves with deadlines, and are unhappy about the smallest of delays. The have been described as stress junkies. The Type B personality, in contrast, is patient, relaxed, and easy-going. There is also a Type AB mixed profile for people who cannot be clearly categorized.

What is important to know about these personality types is that Type A personalities not only feel more stress, but they are at higher risk for coronary heart disease.

Measuring Stress

Two psychologists (there names are Thomas Holmes and Richard Rahe- but I have never seen their names on the AP- which of course means that you will remember them), came up with a test that measures stress in your lives.  The test is called the Social Readjustment Rating Scale (SRRS) and measures stress using life-change units (LCUs).  Everytime you get married, graduate college, get a new job, buy an apartment etc…., you increase your LCU’s and thus increase your stress levels.  A person who scores high on the SRRS by having too many LCUs is more likely to have stress-related diseases than a person with a low score.

Seyle’s General Adaptation Syndrome

Han’s Seyle’s is the big daddy in the filed of stress and formulated a stage theory that he says animals (including us) go through in stressful times.  It is a three stage process:

1. Alarm reaction: Heart rate increases, blood is diverted away from other body functions to muscles needed to react.  The organism readies itself to meet the challenge through activation of the sympathetic nervous system.

2. Resistance: The body remains physiologically ready (high heart rate and so on..).  Hormones are released to maintain this state of readiness.  If the resistance stage lasts too long, the body can deplete its resources.

3. Exhaustion: The parasympathetic nervous system returns our physiological state to normal.  We can be more vulnerable to disease in this stage especially if our resources were depleted by an extended resistance stage.

Introduction to Sensation

Take a look at that trippy picture above.  You see the different colors and their funky motion.  You probably feel your butt against your seat (unless you are standing and in that case you are probably a little strange).  Ok, now take a whiff around the room- different odors are entering your nose (hopefully something pleasant).  Now listen really closely, what do you hear?  Probably the hum from the computer or some Justin Timberlake in the background (don’t be embarrassed, we are all friends here).  Now try to taste what’s in your mouth.  Maybe you can dig out a piece of that peanut butter sandwich from between your teeth you ate an hour ago.  Or maybe you have that morning breath flavor funk going on.  Regardless, at this moment, in some distorted way, you are using all of your senses.

Sensation can be defined as the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment.  What that means is when our body (through our senses) takes in information from everything around us, we are experiencing sensation.  Perception is the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events.  So basically sensation is taking the stuff from outside of us and bringing it inside our bodies and perception is our body trying to understand what we just took in.  The difference is important.  We are first going to talk about how we sense things and break down each one of our senses in more detail.  We will then try to understand how we perceive the world.  Note that this is under the Biological school of psychology because there is a physiological (bodily) root to these ideas and they are all directly linked to our nervous system.  In fact, I want you to look at sensation as an extension of our nervous system (part of our peripheral nervous system).  Think about it, all of the senses (except smell) go first to our thalamus and then to different parts of our brain (vision to the occipital lobes, hearing to the temporal lobes, touch to the sensory cortex in the parietal lobes etc…).

Let’s start off with an important term called transduction.  Transduction is the process by which our body transforms light, sound, touch etc.. into neural impulses that our brain understands.  If you want to play your Ipod on your car radio you need a special wire that will turn the Itunes music into something your car stereo will understand.  The changing of the signals would be transduction.

Now constant stimulation causes a neat phenomenon called sensory adaptation.  Do you feel the underwear you are wearing now?  Probably not, unless it is a beaded thong and in that case you have other issues to worry about.  For the most part, you feel your clothing when you first put it on in the morning, but then lose any sensation of it later in the day.  This is called sensory adaptation and it works for ALL of our senses.  If you play a constant humming sound for long enough, you will lose sense of it.  It even will work for your vision.  If you stare at something for a few minutes it will disappear.  Now if you are trying it now and it does not work, here is the reason why.  Your eyes are constantly moving and never standing motionless, thus it seems as if our eyes are not subject to sensory adaptation.  But if you clamped your eye in one position (please do not try this at home) you would experience sensory adaptation.

Speaking of vision…..