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Avoiding foods with lecithin, such as eggs and peanuts, would affect which
neurotransmitter level the most?
a. acetylcholine
b. serotonin
c. GABA
d. endorphin
What does an electroencephalograph measure?
a. action potentials in an individual neuron
b. the electrical resistance of the scalp
c. the rate of glucose uptake in active regions of the brain
d. the average of the electrical potentials of the cells in a given region of the brain
People typically experience a state of complete relaxation shortly after orgasm; this
occurs due to the release of:
a. testosterone.
b. oxytocin.
c. prolactin.
d. progesterone.
Fields that focus on research include all of the following except:
a. neuroscience.
b. neuropsychology.
c. neurochemistry.
d. neurology.
The field of biological psychology presents a range of career options in ____ and ____.
a. research; sociology
b. therapy; philosophy
c. research; therapy
d. therapy; sociology
The medulla is considered part of the brain rather than the spinal cord because it:
a. developed later in evolution.
b. is contained in the skull.
c. develops from a separate group of neurons.
d. is composed only of interneurons.
When fetal hamster SCN tissue was transplanted, the adult recipients' biological clocks:
a. no longer functioned.
b. shifted by one hour.
c. began producing a rhythm consistent with that of the donor.
d. were unaffected by the donor SCN tissue.
Which statement about tinnitus is FALSE?
a. Many people with nerve deafness experience tinnitus.
b. Many people with conductive deafness experience tinnitus.
c. Tinnitus is common among the elderly.
d. Tinnitus is a frequent or constant ringing in the ears.
Spatial summation refers to:
a. multiple weak stimulations that occur in rapid succession.
b. a decrease in responsiveness after repeated stimulation.
c. multiple weak stimulations that occur at the same time.
d. an increase in the strength of action potentials after repeated stimulation.
Which of the following tasks would split-brain patients be able to perform better than
other people?
a. tying their shoes
b. unfamiliar tasks
c. completing an intelligence test
d. using both hands simultaneously to draw separate shapes
Acetylcholine is synthesized in the:
a. postsynaptic terminal.
b. presynaptic terminal.
c. cell body.
d. dendrites.
Just thinking about the intention to put your arm around your attractive date would
activate which of the following motor areas?
a. posterior parietal lobe
b. primary motor cortex
c. premotor cortex
d. supplementary motor cortex
Most tranquilizers reduce anxiety by:
a. decreasing GABA.
b. increasing GABA.
c. blocking dopamine.
d. increasing CCK.
A benzodiazepine molecule attaches to its receptor and affects the cell by:
a. increasing receptor response to GABA.
b. blocking the sodium gates in the membrane.
c. increasing the flow of potassium.
d. temporarily decreasing serotonin turnover.
Like vasopressin, ____ constricts the blood vessels, compensating for the drop in blood
pressure.
a. angiotensin I
b. angiotensin II
c. renin
d. sodium
After soaking your tongue in a sour solution you try tasting salty, sweet, and bitter
substances. How are these tastes affected?
a. You will be unable to detect the sweet taste, but the other two will be unaffected.
b. You will be unable to detect the sweet or salty tastes, but bitter will be unaffected.
c. You will be unable to reliably detect any of the other tastes.
d. There will be little or no effect on these three tastes.
The action potential of a neuron depends mostly on what movement of ions?
a. sodium ions entering the cell
b. sodium ions leaving the cell
c. potassium ions entering the cell
d. potassium ions leaving the cell
A stroke which is caused when an artery ruptures is also known as:
a. ischemia.
b. hemorrhage.
c. closed head injury.
d. penumbra.
Certain individuals with an XY chromosome pattern have the genital appearance of a
female. This condition is known as:
a. androgen insensitivity.
b. cortisol insensitivity.
c. intersex.
d. adrenal hyperplasia.
If a migratory bird is kept in a laboratory room with constant temperature and 12 hours
of light each day, when does it show migratory restlessness?
a. steadily at all times
b. never
c. at approximately the correct time of year for migration
d. at random intervals throughout the year
The____ has made the most spectacular progress toward learning to communicate by an
approximation of human language.
a. common chimpanzee
b. bonobo chimpanzee
c. gorilla
d. dolphin
Where is the basilar membrane most sensitive to the vibrations of very high-frequency
sound waves?
a. closest to the cochlea
b. at the apex, farthest from the cochlea
c. about halfway between the cochlea and the apex
d. It is equally sensitive across the entire membrane.
The Behavioral Inhibition System is associated with:
a. low to moderate arousal, tendency to approach new objects, and pleasant mood.
b. maximum arousal, increased fear, and negative mood.
c. lack of arousal, decreased action, and pleasant mood.
d. increased attention and arousal, decreased action, and fear or disgust.
Drugs that are used to control narcolepsy also tend to produce what other effects?
a. uncontrollable hand tremors and facial tics
b. increased wakefulness
c. reduction of sympathetic arousal
d. relief from the symptoms of schizophrenia
Which of the following would lead to eating a larger than normal meal?
a. increasing leptin levels
b. decreasing NPY levels
c. increasing NPY levels
d. damaging the lateral hypothalamus
People whose sexual development is intermediate or ambiguous are called:
a. intersexes.
b. hermaphrodites.
c. hyperplasias.
d. hermasexses.
What is caused by a high concentration of solutes outside the cells?
a. increase in blood pressure
b. water flows into the cells
c. water flows out of the cells
d. excretion of diluted urine
Which of the following is TRUE about EPSPs?
a. It takes two to produce an action potential.
b. They decay over time and space.
c. They can be either excitatory or inhibitory.
d. They occur because potassium gates open.
The relationship between ____ and sexual interest may go in both directions.
a. Estrogen
b. Oxytocin
c. Testosterone
d. Estradiol
Which of the following is sometimes taken as evidence that schizophrenia might be
caused by a virus or bacteria?
a. the age at which symptoms appear
b. the high concordance between paternal half-siblings
c. the season-of-birth effect
d. the relationship between schizophrenia and stressful experiences
Which of the following behaviors most closely meets the definition of schizophrenia?
a. alternation between one personality and another
b. outbursts of unprovoked violent behavior toward strangers
c. deterioration of daily functioning, hallucinations, and thought disorders
d. episodes of being unable to remember certain events of one's past
Research on laboratory animals indicates that cannabinoids are most effective if taken:
a. as soon as the stroke occurs.
b. within 20 minutes of the stroke.
c. steadily for one month.
d. shortly before the stroke.
