What is the task that Piaget and Inhelder devised to demonstrate egocentrism during the preoperational stage?
a. three mountains task
b. "it is about me" task
c. self-centered task
d. ego-stability task
Answer: A
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Which of the following can be impaired by sleep deprivation?
A. learning B. reaction time C. weight D. body temperature regulation E. all of these are impaired
The main cause of infant mortality in the first year is
a. parental physical abuse. b. congenital defects of the heart. c. traumas during delivery. d. sudden infant death syndrome (SIDS).
Inflammation caused by which of the following types of glia is believed to contribute to neurodegenerative diseases, such as Alzheimer's disease and Parkinson's disease?
a. astrocytes b. oligodendrocytes c. Schwann cells d. microglia
Sensory and motor nerves differ in that:
a. only sensory neurons have dendrites. b. only motor neurons have axons. c. sensory neurons carry messages away from the brain, and motor neurons carry information toward the brain. d. sensory neurons carry messages toward the central nervous system and motor neurons carry information away from the central nervous system.