A very brief shift in electrical charge that travels along the axon is called
an _____________ ________________.
The "all-or-none law" refers to the fact that
a neuron transmits an impulse of the same strength each time it fires an action potential
What event causes the release of neurotransmitters into the synaptic cleft?
the arrival of the action potential at the terminal buttons
The nervous system consists of two major divisions: the ____ and ____ nervous systems.
A loosely connected network of brain structures involved in memory and emotional experiences such as fear and pleasure is the
Zeke has no problem understanding what other people say to him, but he has difficulty producing spoken language. If Zeke's problem stems from damage to the cerebral cortex, the damage would most likely be in
an area known as Broca's area
Following split-brain surgery an individual would have difficulty naming an object that he briefly saw in the left visual field because while the ____ hemisphere "saw" the object, naming tasks are under the control of the ____ hemisphere.
Nadine had a stroke that was confined to the right side of her brain. Based on hemispheric lateralization studies you might expect that Nadine would have the most problems with tasks that require
spatial skills, such as fitting together puzzle pieces.
Darwin believed that a trait contributed to evolution by providing
either a reproductive or survival advantage.
The premise that heritable characteristics provide a survival or reproductive advantage and are more likely to be passed on to subsequent generations is known as
Results from family, twin, and adoption studies strongly suggest that
genetics and experience jointly influence human behavior.
If a trait is influenced to some degree by genetic factors, identical twins should be ____ similar to each other than fraternal twins because identical twins ____.
more; have 100% of their genetic information in common
Current evidence indicates that schizophrenia results from
multiple causes that involve both genetic and environmental factors.
It is MOST accurate to state that family, twin, and adoption studies are designed to determine the effect of ____ on human behavior.
both experience and genetics
The retinal area that, when stimulated, affects the firing of a visual cell is referred to as the cell's
The main pathway visual signals travel from the eye to the visual cortex is
optic nerve - optic chiasm - thalamus - occipital lobe
Complex cells in the visual cortex respond to
specific widths and orientation of lines anywhere in their receptive field
After having your picture taken with a yellow flash, you momentarily see blue spots floating before your eyes. This phenomenon is best explained by
opponent process theory
Reversible figures illustrate the observation that
the same visual input can result in different perceptions
The basic assumption of Gestalt psychology is that
our perception of a "whole" may have qualities that do not exist in any of the parts
Which of the following is not one of the Gestalt principles describing how individual elements are grouped into higher-order forms?
The Gestalt principle that best explains our perception of reversible figures such as the two silhouetted faces/vase figure is
Natalie sat on her porch looking out at the field of soybeans. The fact that Natalie perceived the soybean plants as being grouped into a series of separate rows is consistent with the Gestalt principle of
The perceptual tendency to perceive a pile of change as being composed of pennies, nickels, and dimes is the result of
Depth perception cues that result because of the differing views of the two eyes are
binocular depth cues
When your psychology professor is lecturing to your class, your professor can tell which students are sitting in the first, second, third, etc., row, in part because students in the closer rows appear to have larger heads than students in more distant rows. This illustrates the depth perception cue of
If you incorrectly perceive that two lines are the same length when they are not, you are experiencing a(an)
The correct order that auditory information travels as sounds enter the ear is from the auditory canal to
eardrum - ossicles - oval window - cochlea
Given our present knowledge concerning pitch perception, which theory seems more accurate?
both the frequency and place theory are partly correct
Peter is in a deep sleep and his brain wave pattern consists of low frequency delta waves. Peter is experiencing which stage of sleep?
Stage 3 or 4
Bailey is hooked up to an electroencephalograph (EEG) in a sleep lab. She has been asleep for just over an hour now, and her EEG is showing low amplitude, irregular brain wave patterns. Her breathing and pulse rate are irregular, and her eyes are darting back and forth beneath her closed eyelids. The researcher who is monitoring Bailey's sleep can conclude that Bailey
has just entered REM sleep
Compared to young adults, infants sleep for a ____ period of time each day and spend a ____ proportion of their total sleep time in REM sleep.
Which of the following has not been suggested as a hypothesis concerning the evolutionary bases of sleep?
to reduce the risk of accidents during the night part of the day-night cycle
While serving as a subject at a sleep clinic, Erica is deprived of dreaming for several nights. As a result, she is likely to
experience REM rebound and spend more time in REM sleep on subsequent nights
A systematic procedure that typically produces a heightened state of suggestibility defines
Which theory of dreaming suggests that the cortex constructs dreams in order to make sense out of neural impulses from subcortical areas of the brain?
The idea that hypnosis is associated with divided consciousness and is an altered state is most consistent with which of the following theories of hypnosis?
Hilgard's dissociation theory
A progressive decrease in a person's responsiveness to a drug as a result of continued use is called