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PSYCHOLOGY 1004 VIRGINIA TECH EXAM QUESTIONS WITH COMPLETE ANSWERS
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PSYCHOLOGY 1004 VIRGINIA TECH EXAM QUESTIONS WITH COMPLETE ANSWERS
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PSYCHOLOGY 1004 VIRGINIA TECHEXAM QUESTIONS WITH COMPLETE
ANSWERS
Psychology - answer-the scientific study of the causes of behavior and mental
processes
Cognitive - answer-what is happening in the mind, thoughts, information processing,
memory, etc.
Neuroscience - answer-influence of the nervous system (brain, spinal cord) on behavior
Ohdac - answer-scientific method: observation, hypothesis, design experiment, perform,
analyze, and conclude
Hypothesis - answer-tentative statement about a cause-and-effect relation between 2 or
more events
Theory - answer-a set of statements that describe and explain known facts, proposes
relations among variables, and makes new predictions
Operational definitions - answer-the definition of iv and dv in terms of the operations a
researcher performs in order to set their values or to measure them
-ex: need to define "intelligence" before doing an intelligence/iq test
Naturalistic observation - answer-observe subjects in their natural/normal environment
Clinical observation - answer-observe subjects undergoing treatment for a psychological
condition
Allows for experimenter control
Correlational studies - answer-used to determine the relationship btwn variables
Can not determine causality, just because x and y are related, can't say x causes y
Case studies - answer-in-depth study of a single person or group
Reliability - answer-a process described by an operational definition that produces
consistent results
-ex: height
Validity - answer-refers to a test's ability to measure what it is supposed to measure
Sensory neurons - answer-afferent
, Afferent - answer-ascending pathways to brain (from body to brain)
Motor neurons - answer-efferent
Efferent - answer-descending pathways from brain (from brain to body)
Interneurons - answer-link between the sensory neurons and motor neurons
In the brain and spinal cord
Soma - answer-cell body; carries out basic functions of cell
Dendrites - answer-tree-like structures that receive messages from other neurons
Axon - answer-transmits electrical current (action potential) towards the end of the
neuron
Myelin sheath - answer-fatty insulation surrounding axon that makes the transmission of
the action potential stronger and faster
Terminal buttons - answer-store neurotransmitters then release them to activate or
inhibit other neurons
Action potential - answer-electrical message
All-or-nothing - answer-has to reach a threshold to fire
All action potentials are the same intensity when fired
Inside of axon is ________ at rest - answer-negative (-70 mv)
Change in permeability of membrane allows - answer-positive na ions in and negative k
ions out
At terminal endings the electrical message becomes - answer-chemical
Pre-synaptic neuron - answer-neurotransmitters are stored in the terminal endings
Synapse - answer-the appropriate neurotransmitter is released across
Post-synaptic neuron - answer-the neurotransmitters bind to the post-synaptic neuron at
the receptor site
Inhibitory - answer-discourage firing
Excitatory - answer-encourage firing
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