Phys Psychology

Question 0

What direction do afferent and efferent fibers transmit info?

Answer 0

afferent -to the CNS

efferent -from the CNS

Question 1

What is physiological psychology?

Answer 1

the study of the essential biology of the mind

Question 2

What does the somatic nervous system control?

Answer 2

voluntary movement of striated muscles

Question 3

Which nervous system controls arousal?

Answer 3

sympathetic nervous system, part of autonomic NS

Question 4

Which nervous system controls recuperation after arousal?

Answer 4

parasympathetic NS, part of autonomic NS

Question 5

What are the four major areas of the hindbrain?

Answer 5

• medulla oblongata
• pons
• base reticular formation
• cerebellum

Question 6

What does the medulla oblongata control?

Answer 6

breathing, heartbeat, and blood pressure

Question 7

What does the reticular formation control?

Answer 7

alertness, sleep, thirst, and involuntary muscles such as the heart

Question 8

What is considered the most evolutionarily conserved part of the brain?

Answer 8

the reticular formation

Question 9

From anterior to posterior, what connects the brain to the spinal cord?

Answer 9

pons & cerebellum
reticular formation
medulla oblongata

Question 10

What functions does the midbrain tectum serve?

Answer 10

visual and auditory reflexes and processing

superior & inferior colliculi

Question 11

What functions does the midbrain tegmentum serve?

Answer 11

sleep, arousal, eye movements

contains nuclei of several cranial nerves

Question 12

What are the three major areas of the midbrain?

Answer 12

• superior part of the reticular formation
• tectum (dorsal area)
• tegmentum (ventral area)

Question 13

What are the three major components of the limbic system?

Answer 13

• hippocampus
• amygdala
• cingulate gyrus

Question 14

What is apraxia?

Answer 14

inability to initiate and organize movement

Question 15

What is an agnosia?

Answer 15

difficulty processing sensory information

Question 16

Damage to what area of the brain leads to Broca’s aphasia?

Answer 16

anterior regions of the brain,

including (but not limited to) the left inferior frontal gyrus

Question 17

Damage to what area of the brain leads to Wernicke’s aphasia?

Answer 17

posterior region of the brain,

part of the superior temporal gyrus

Question 18

Damage to what region of the brain has been shown to cause hyperphagia in animal models?

Answer 18

ventromedial part of the hypothalamus

Question 19

What is the axon hillock?

Answer 19

where the soma and axon connect

Question 20

Where are synaptic vessels stored in a neuron?

Answer 20

terminal buttons

Question 21

At resting potential, what is the internal charge of a neuron?

Answer 21

negative

Question 22

In an EPSP, how does the charge inside the neuron change?

Answer 22

it becomes slightly more positive (pos ions enter the cell)

aka slightly depolarized

Question 23

In an IPSP, how does the charge inside the neuron change?

Answer 23

becomes slightly more negative (pos ions exit the cell)

aka hyper-polarized

Question 24

What happens to a cell that is depolarized?

Answer 24

charge inside cell becomes less negative

Question 25

About how much time in sleep is spent in REM sleep?

Answer 25

20%

Question 26

What type of brain waves characterize REM sleep?

Answer 26

beta waves

same as characterize waking states

Question 27

What is the other term for the characteristic wave patterns of REM/waking states?

Answer 27

neural desynchrony

Question 28

Early in a single night’s sleep cycle, what sleep stages predominate?

Answer 28

stages 3 and 4

Question 29

Late in a single night’s sleep cycle, what sleep stages predominate?

Answer 29

stage 2 and REM