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24 Cards in this Set
- Front
- Back
How many portions of a brain are there?
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1 reptilian/inner portion
2 paleomammilian 3 neomamilian |
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What does reptilian portion of brain include?
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thalamus, hypothalamus, amygdale, pons, cerebellum
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What is reptilian portion of brain similar to and what functions does it perform?
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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 |
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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.
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What does neomamillian prtion of brain do?
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This is wrapped around the first 2 sections. Involved in uniquely human characteristics like planning, self aware, and language
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What is another name for neomamillian?
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Cerebral cortex?
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What are 2 hemispheres of brain called?
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L and R hemisphere
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What does l hemisphere of brain do?
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Responsible for comprehension and production of language
I.e. Brocas Area |
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What does r hemisphere of brain do?
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Responsible for visual perception and spatial understanding
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What are names of 4 lobes of brain?
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frontal, parietal, occiputal, temporal
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What does frontal lobe do?
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Responsible for associating or connecting certain types of behavior and motor fx *see example below with frontal lobotomy
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What does occipital lobe do?
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Involved in vision
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What is fx of temporal lobe?
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Hearing and speach
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What is fx of parietal lobe?
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Services other sensory systems: taste etc.
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How do we study the brain, what are 3 sources of info?
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1 pts who suffer head injury
2 brain surgery 3 pet scan |
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Who was Dr Moniz? When was he famous? What procedure did he perform?
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Prefrontal lobotomy done in 1930s to sever nerves that connect the frontal portion of cerebral cortex to thalamus
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Indic of prefrontal loboomy?
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Attempt to control uncontrollable violent behavior
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What were results of prefrontal lobotomy?
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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.
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What are neurotransmitters and hormones?
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Chemicals in the brain that appear to influence behavior
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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 |
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What are the 3 sources of hormones?
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1 hypothalamus
2 gonads 3 adrenal cortex |
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What characteristics are correlated with incr testosterone?
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More conflicted relationships, ↑ drug use, ↑ # of sexual partners, ↑ violence
Ω concluded that testosterone influences aggression and sexual activity |
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Definition of behavioral genetics
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Science of psychology and biology. Examine both species specific behavior patterns, universal behavior patterns, and differences within a specific species
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Why do we do kinship studies
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Less direct manner to study genetic influence. The closer individuals are with respect to their genetic ancestry the more genes they share in common
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