Chapter 1:Origins of Brain and Behavior Flashcards

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1
Q

Why study brain and behavior clinically

A

To gain a better understanding of traumatic brain injuries and those affected by it

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2
Q

CNS

A

Neurons connecting to brain and spinal cord

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3
Q

PNS

A

Neurons connecting to parts outside of CNS

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4
Q

2 Major structures of the brain

A

Cerebrum, cerebellum

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5
Q

How is the cerebrum different from the cerebellum

A

The cerebrum is much larger and folded because of all the neurons constantly being folded on top of each other to increase surface area.

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6
Q

Embodied behavior

A

The brain cannot be divorced from the bodies activities

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7
Q

Aristotle perspective on brain and behavior

A

He believed in mentalism which stated that behaviors arose from a nonmaterial mind (psyche), not the brain.

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8
Q

Descartes perspective on brain

A

Descartes believes in dualism which stated that the non material mind and the body contribute to behavior. It also believed that the mind was found in the pineal gland where it controls body movements through sending fluid down ventricles. In reality, the pineal gland controls daily biorhythms

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9
Q

Darwin’s perspective on brain

A

Darwin believed in materialism which states that behavior is a function of the nervous system without recourse of the mind and that behaviors of complex animals like humans developed from brain of simpler animals

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10
Q

Natural selection

A

How new species evolve and existing species change over time

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11
Q

Epigenetics

A

Epigenetics is the study of differences in gene expression arising from environmental differences

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12
Q

What is contemporary brain theory

A

States that behavior and neural function are perfectly correlated. This approach is materialistic and gathers ideas through evidence from brain imaging

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13
Q

Which phylum have the greatest amount of encephalization

A

The phylum Chordata, only chordates have a true brain and have a similar brain plan.

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14
Q

Which order do humans belong to

A

The primate order

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15
Q

What family do humans belong to

A

Great apes

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16
Q

How large was the first humans brain

A

The size of modern apes

17
Q

Describe the trend of brain size in evolution

A

As more generations went by, the brain size increased

18
Q

Homo habilis

A

First “handy humans” (made tools)

19
Q

Homo erectus

A

First humans to walk upright

20
Q

What did Jerison’s study

A

Developed a quantitative measure for brain size to allow comparisons among different species (encephalization quotient)

21
Q

How does one tell if a certain species is smarter

A

By measuring brain size in comparison to the body as well as the neuron connections that are associated with the brain.

22
Q

Why did the hominid brain evolve

A

Changes in climate led to brain structure and size changing as well as the primate lifestyle needed to survive.

23
Q

Changes in hominid physiology

A

Maturation lasts longer in the brain, neoteny of current juveniles is the same as adult descendants