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24 Cards in this Set

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  • Back
How many portions of a brain are there?
1 reptilian/inner portion
2 paleomammilian
3 neomamilian
What does reptilian portion of brain include?
thalamus, hypothalamus, amygdale, pons, cerebellum
What is reptilian portion of brain similar to and what functions does it perform?
FOOD, SEX, TERITORYAppears to be similar to the brains found in reptiles in that controls mobility,
Pursuing and eating food, migrating, courting, reproduction, defending territory
What is paleomamillian portion of brain?

What is it similar to?
2cd layer of brain which is wrapped around reptilian in humans (and mammals like dogs, cats, rats etc.). First 2 structures make up the limbic system. This is responsible for our capacity to experience complex emotions, motivation, curiosity, and learning.
What does neomamillian prtion of brain do?
This is wrapped around the first 2 sections. Involved in uniquely human characteristics like planning, self aware, and language
What is another name for neomamillian?
Cerebral cortex?
What are 2 hemispheres of brain called?
L and R hemisphere
What does l hemisphere of brain do?
Responsible for comprehension and production of language
I.e. Brocas Area
What does r hemisphere of brain do?
Responsible for visual perception and spatial understanding
What are names of 4 lobes of brain?
frontal, parietal, occiputal, temporal
What does frontal lobe do?
Responsible for associating or connecting certain types of behavior and motor fx *see example below with frontal lobotomy
What does occipital lobe do?
Involved in vision
What is fx of temporal lobe?
Hearing and speach
What is fx of parietal lobe?
Services other sensory systems: taste etc.
How do we study the brain, what are 3 sources of info?
1 pts who suffer head injury
2 brain surgery
3 pet scan
Who was Dr Moniz? When was he famous? What procedure did he perform?
Prefrontal lobotomy done in 1930s to sever nerves that connect the frontal portion of cerebral cortex to thalamus
Indic of prefrontal loboomy?
Attempt to control uncontrollable violent behavior
What were results of prefrontal lobotomy?
Reduced ability to respond emotionally to stimuli or events. This led to the conclusion that frontal portion of cerebral cortex is involved in extreme expressions of emotion. Surmise that b/c person becomes vegetative Ω surmise that this portions fxs to register and process stimuli and immediate events.
What are neurotransmitters and hormones?
Chemicals in the brain that appear to influence behavior
Why is it difficult to study nuerotransmitters?

What do we call knowledge we can obtain thru neurotransmitters?
Only way to study is to obtain sample and b/c of diff in obtaining sample so study only those who are already having blood drawn for other procedures

Ω Knowledge obtained about chemicals and behavior is

correlation date. Problem is that it is diff to know which variable causes another variable
I.e. does ↑ testosterone cause ↑ aggression or other way around
What are the 3 sources of hormones?
1 hypothalamus
2 gonads
3 adrenal cortex
What characteristics are correlated with incr testosterone?
More conflicted relationships, ↑ drug use, ↑ # of sexual partners, ↑ violence
Ω concluded that testosterone influences aggression and sexual activity
Definition of behavioral genetics
Science of psychology and biology. Examine both species specific behavior patterns, universal behavior patterns, and differences within a specific species
Why do we do kinship studies
Less direct manner to study genetic influence. The closer individuals are with respect to their genetic ancestry the more genes they share in common