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Psychology: Themes and Variations

Wayne Weiten

Chapter 3

The Biological Bases of Behavior - all with Video Answers

Educators

Chapter Questions

03:12

Problem 1

A neural impulse is initiated when a neuron's charge momentarily becomes less negative, or even positive. This event is called:
A. an action potential.
B. a resting potential.
C. impulse facilitation.
D. inhibitory.

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04:22

Problem 2

Neurons convey information about the strength of stimuli by varying:
A. the size of their action potentials.
B. the velocity of their action potentials.
C. the rate at which they fire action potentials.
D. all of the above.

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01:53

Problem 3

Alterations in activity at dopamine synapses have been implicated in the development of:
A. anxiety.
B. schizophrenia.
C. Alzheimer's disease.
D. nicotine addiction.

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Alexa Moschella
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03:18

Problem 4

Tania just barely avoided a head-on collision on a narrow road. With heart pounding, hands shaking, and body perspiring, tania recognizes that these are signs of the body's fight-or-flight response, which is controlled by the:
A. empathetic division of the peripheral nervous system.
B. parasympathetic division of the autonomic nervous system.
C. somatic division of the peripheral nervous system.
D. sympathetic division of the autonomic nervous system.

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Alexa Moschella
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02:55

Problem 5

The hindbrain consists of the:
A. endocrine system and the limbic system.
B. reticular formation.
C. thalamus, hypothalamus, and cerebrum.
D. cerebellum, medulla, and pons.

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02:11

Problem 6

Juan is watching a basketball game. The neural impulses from his eyes will ultimately travel to his primary visual cortex, but first they must pass through the:
A. amygdala.
B. hypothalamus.
C. thalamus.
D. pons.

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02:15

Problem 7

The ___________ lobe is to hearing as the occipital lobe is to vision.
A. frontal
B. temporal
C. parietal
D. cerebellar

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Alexa Moschella
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02:16

Problem 8

Paul has profound difficulty producing spoken language. If his problem is attributable to brain damage, the damage would probably be found in:
A. the cerebellum.
B. Sperry's area.
C. Broca's area.
D. Wernicke's area.

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Alexa Moschella
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02:55

Problem 9

Sounds presented to the right ear are registered:
A. only in the right hemisphere.
B. only in the left hemisphere.
C. more quickly in the right hemisphere.
D. more quickly in the left hemisphere.

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Alexa Moschella
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02:56

Problem 10

In people whose corpus callosums have not been severed, verbal stimuli are identified more quickly and more accurately:
A. when sent to the right hemisphere first.
B. when sent to the left hemisphere first.
C. when presented to the left visual field.
D. when presented auditorally rather than visually.

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Alexa Moschella
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02:36

Problem 11

Hormones are to the endocrine system as __________________ are to the nervous system.
A. nerves
B. synapses
C. neurotransmitters
D. action potentials

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02:10

Problem 12

Jenny has brown hair and blue eyes and is $5^{\prime} 8^{\prime \prime \prime}$ tall. What is being described is Jenny's:
A. genotype.
B. phenotype.
C. somatotype.
D. physique.

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04:15

Problem 13

Adopted children's similarity to their biological parents is generally attributed to ______________: adopted children's similarity to their
adoptive parents is generally attributed to _____________
A. heredity; the environment
B. the environment; heredity
C. the environment; the environment
D. heredity; heredity

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02:27

Problem 14

In evolutionary theory, _______________ refers to the reproductive success of an individual organism relative to the average reproductive success in the population.
A. natural selection
B. gene flow
C. adaptation
D. fitness

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02:26

Problem 15

For which of the following assertions is the empirical evidence strongest?
A. The two cerebral hemispheres are specialized to handle different types of cognitive tasks.
B. People have a separate stream of consciousness in each hemisphere.
C. Each hemisphere has its own cognitive style.
D. Some people are right-brained, while others are left-brained.

Alexa Moschella
Alexa Moschella
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