Prashanth Is Participating in a Psychology Experiment in Which He

question 126

Multiple Choice

Prashanth is participating in a psychology experiment in which he is asked to gradually shrink the image of a square on his computer screen until he can just barely see that it is smaller than
A second square on the screen.Prashanth is trying to create a

• A) signal detection.
• B) absolute threshold.
• C) just-noticeable difference.
• D) sensory adaptation.

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Definitions:

Stimulant Drugs

Substances that increase activity in the central nervous system or the body, leading to increased alertness, attention, and energy, such as caffeine or amphetamines.

Nucleus Accumbens

A region in the brain involved in the reward circuit, associated with motivation, pleasure, and reinforcement learning.

Dopamine

A neurotransmitter involved in many functions including mood, sleep, learning, and the reward system.

Norepinephrine

A neurotransmitter and hormone involved in the body's fight or flight response, affecting mood and arousal.