Which brain area receives incoming messages from the sense organs and bombards the cortex with stimulation, keeping the brain active and alert?

a. thalamus
b. medulla
c. reticular activating system
d. limbic system


ANSWER: c

Psychology

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Despite the fact that a human female has a normal pregnancy duration (or gestational period) of 38 weeks, people often refer to pregnancy as a 40-week event. Why is this?

a. Because the heightened influence of teratogens in the world today has actually extended the duration of pregnancy from conception to delivery. b. Because pregnancy usually begins two weeks after a woman's menstrual period, and that is the time from which the beginning of pregnancy is measured. c. Because the duration of pregnancy actually gets longer as a woman ages, and it ranges from 38 to 42 weeks. 40 weeks is the average, so that is what people say. d. Because physicians want to allow for a two-week "window" at the end of the pregnancy so that women do not become concerned if they have not delivered by the end of the 38th week.

Psychology

According to Erikson, a proper balance of trust and mistrust leads children to develop a sense of ____

a. efficacy b. hope c. equilibration d. egocentrism

Psychology

Describe three mechanisms that help explain why stereotypes persist even when people are presented with stereotype-inconsistent information

What will be an ideal response?

Psychology

In which area of the brain would one find the tectum, tegmentum, superior and inferior colliculi, and substantia nigra?

a. midbrain b. hindbrain c. reticular formation d. forebrain

Psychology