PSYCH 1 TEST 1
For a typical neuron, what is the threshold potential?
-55 mV
An action potential takes about _____ to complete.
1 ms
"Analyze" is one of the four main goals of psychology.
False
A personality questionnaire is most likely used in naturalistic observation research.
False
A psychologist evaluating the success of a substance abuse program is conducting basic research.
False
A value close to 0.00 of a correlation coefficient indicates a strong correlation between variables.
False
Alcohol is the most commonly used psychoactive drug in the United States.
False
Dreaming usually takes place in Stage N1 sleep.
False
Driving when exhausted is not as dangerous as is driving drunk.
False
Macy has 200 Facebook friends. Based on statistics presented in the text, about 30 of these people are probably struggling with alcohol dependence or some type of drinking problem
False
Margaret Floy Washburn is seen by many as a "founding mother" of the sociocultural perspective in psychology
False
Performing searches on online databases is probably the best way to find scientific journal articles in psychology.
False
Plato is to nurture as Aristotle is to nature.
False
Single-blind studies control for experimenter bias.
False
Study time is the dependent variable in an experiment examining the effect of the length of time that a list is studied on list memory.
False
The biological perspective would suggest that depression can be treated by changing negative thought patterns.
False
The majority of a typical night's sleep is spent in REM sleep.
False
The strength of a correlation is indicated by the sign of the coefficient.
False
As part of a laboratory experiment in his psychology course, Miguel is observing the activity of a recording electrode on the axon of a neuron. As an action potential occurs, what might Miguel observe
The electrical charge of the neuron will go from negative to positive before returning to resting potential.
"I swear I just heard my name": This experience exemplifies the cocktail party effect.
True
Angel dust" and "Special K" are both psychedelic anesthetics.
True
Emphasizing evolutionary factors in explaining obesity reflects the legacy of functionalism.
True
In a study of the link between prolonged confinement and stress, stress is a variable.
True
Many everyday behaviors are supported by automatic processing.
True
Non-REM sleep aids in learning and memory
True
Positive psychology reflects the legacy of the earlier humanistic perspective.
True
Psychologists typically delineate between waking consciousness and altered states of consciousness that may result from drugs, alcohol, or hypnosis.
True
Psychology is the study of mental processes.
True
Research suggests that children viewing television programs like SpongeBob Squarepants may experience a brief dip in cognitive functions
True
Scotty is demonstrating tolerance when he uses progressively larger doses of cocaine in an attempt to duplicate his first high.
True
The behavioral perspective was established by John Watson.
True
The biological clock can readjust by about 1 to 2 hours per day.
True
The term "hypnosis" comes from the Greek word for "sleep."
True
The urge to use social media may be harder to resist than sex, spending money, or using alcohol or drugs.
True
Today's psychologists believe that consciousness may be studied scientifically.
True
We are designed to pay attention to abrupt, unexpected changes in the environment and to stimuli that are unfamiliar or especially strong
True
Low levels of _____ in the brain have been linked to Alzheimer's disease.
acetylcholine
An advertisement for a new drug therapy is eye catching. The advertisement claims that the drug will counteract the symptoms of Alzheimer's disease. The drug potentially works by acting as a(n)
acetylcholine agonist.
Ablation, a very early technique, studied the brain by
destroying parts of a living animal brain to determine a loss of function.
In the protocol application she is preparing to submit to the Institutional Review Board (IRB), Dr. Francis describes the need to map neural connections in her experimental subjects. Dr. Francis will only be able to use ____ for her study if the IRB approves the protocol.
diffusion spectrum imaging (DSI)
The intricate pathways of myelinated axons in the brain can be seen using _____, which tracks the diffusion of water molecules in the brain.
diffusion spectrum imaging (DSI)
The axon of a neuron would be described as a
long, tube-like structure extending from a neuron's cell body.
Dr. Thomas is preparing to conduct a research study on individuals with traumatic brain injuries. In order to document the extent of injury, subjects will undergo brain imaging at the start of the study. If Dr. Thomas is interested in documenting structural damage to the brain, which imaging technique should she use for the study?
magnetic resonance image (MRI)
A person suffering from multiple sclerosis may have symptoms such as fatigue, trouble with vision, and cognitive disabilities resulting from damage to
myelin sheaths.
As a researcher studying brain injuries in soldiers wounded in combat, Tiana is one of many team members. Some members of the research team are interested in studying the emotional stress experienced by returning soldiers, and others are interested in the effectiveness of various treatments. Tiana works in the field of _____ because her interests are in studying the brain and nervous system.
neuroscience
The breaks between myelin segments are called
nodes of Ranvier.
Brandon, who suffered head trauma while serving in Iraq, could only tie his shoe with his left hand. From this we know that Brandon's injury was
on the left side of his brain.
The electrical potential created by the difference in charge between the inside and outside of a neuron is called the neuron's _____ potential.
resting
The role of _____ is to protect and insulate the axon and to speed up the neural message.
the myelin sheath
Compared to action potentials in unmyelinated neurons, action potentials in myelinated neurons:
travel much faster.
