Who first established that people are able to distinguish between

differences in sensory experiences, such as differences in
brightness or loudness, in ways that follow orderly laws?

a. Helmholtz.
b. Broca.
c. Flourens.
d. Weber.
e. Müller.

d. Weber.

Psychology

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An experienced heroin user will have a higher risk of overdose if he injects the drug in an unfamiliar environment.

Indicate whether the statement is true or false.

Psychology

For most cultures, children learn when it is appropriate to speak and when it is best to keep their thoughts to themselves by the time they reach ______

middle childhood || early childhood || toddlerhood || late infancy || || ||

Psychology