PSY 100 Lecture 3: Chapter 3

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Sensation process by which info from the outside world enters the brain. Process of converting outside stimuli into neural activity. Sensory receptors specialized neurons they receive info from other kinds of energy. We(cid:271)er"s law of just noti(cid:272)ea(cid:271)le differen(cid:272)e the smallest difference between 2 stimuli that is detectable 50% of the time. Absolute threshold the smallest amount of a particular stimulus required to produce any sensation at all. Subliminal stimuli stimuli that are just below the surface of being consciously aware. Subliminal perception subliminal stimuli that act upon the unconscious mind influencing behavior. Habituation the tendency of the brain to stop attending to constant unchanging information. Sensory adaptation tendency of sensory receptor cells to become less responsive to a stimulus that is unchanging. Allows us to respond to new stimuli. Perception the process in which the brain takes all the sensation a person experiences and allows them to interpret it in some meaningful fashion subjective.

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