What did Sigmund Freud consider to be the key to understanding the nervous disorders he observed?
A. free will
B. brain physiology
C. the unconscious mind
D. external consequences
Answer: C
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On a test with a population mean of 75 and standard deviation equal to 16, if the scores are normally distributed, what percentage of scores fall below a score of 83.8?
a. 55.00 b. 79.12 c. 20.88 d. 29.12 e. 70.88
The types of acetylcholine receptors consist of:
a. cholinergic and adrenergic. b. muscarinic and nicotinic. c. nicotinic and cholinergic. d. acetylcholinesterase and acetic acid.
The lower region of the ________ lobe is a center for processing mathematical and spatial information.
a. frontal b. parietal c. occipital d. temporal e. ventral
Kainic acid is a neurotoxin as well as an activator of neurons because
A) at low doses it destroys neurons. B) at low doses it dissolves the neuron membrane. C) at high doses it overexcites and then kills neurons. D) kainic acid is toxic to glial cells that nourish neurons. E) it blocks membrane sodium channels.