Which statement is true of long-term depression (LTD)?
A. LTD is associated with an increase in the number of AMPA receptors in the postsynaptic neurons.
B. LTD reflects a gradual strengthening of synaptic connections.
C. LTD is associated with a decrease in the number of AMPA receptors in the postsynaptic neuron.
D. LTD can be produced by high-frequency stimulation of CA1 neurons.
Answer: C
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Maslow admitted that his theory was not widely supported by laboratory research, but he argued that:
a. his theory is derived from the scientifically rigorous work of previous researchers. b. scientific research is not important in the study of human psychology. c. any idea that becomes popular is definitely reliable. d. his theory fits very well with the personal experience of most people.
"I can't seem to pinpoint why I am so afraid of things. I can't concentrate on my studies, can't sleep at night, and I have headaches. I've felt like this for more than a year." This person is most likely describing:
A. conversion disorder B. agoraphobia C. panic disorder D. generalized anxiety disorder
Bipolar disorder is to ____ disorder as major depression is to ____ disorder
a. dysthymic; cyclothymic b. cyclothymic; anxiety c. cyclothymic; dysthymic d. psychotic; neurotic
An advantage of magnetic resonance imaging (MRI) over positron emission tomography (PET) is:
a. it can detect how specific tasks activate brain regions b. it can measure electrical activation c. it does not require the patient ingest any chemicals d. it is based on x-ray techniques