The presence of a barrier between the blood stream and the brain is suggested by the observation that __________.
A. all cells of the body are stained by a dye injected into the bloodstream
B. injection of dye into the bloodstream stains all cells but those of the brain and spinal cord
C. injection of dye into the ventricles stains all cells of the body
D. most chemicals rapidly reach the brain after oral ingestion
Answer: B
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Which statement best summarizes the focus of the Gestalt psychologists?
a. We must understand the basic components of perception. b. We need to identify the number of geons needed for object recognition. c. We want to understand how elements are added up to create sensations. d. We need to identify the neurons that create perception.
The segregation of a whole display into objects and background is known as ______.
a. size constancy b. retinal imagery c. bottom-up processing d. figure-ground organization
Realistic-conflict theory proposes that prejudice ____.?
a. ?is a product of normal cognitive processes b. ?occurs when groups compete for the same resources c. ?occurs when a group holds a position of dominance over another group d. ?cannot be prevented, only managed
The main purpose of replicating studies is to:
A) keep the scientific community aware of the results. B) renew drug and technology patents based on the research. C) ensure that the results are correct. D) secure extra funding.