Examlex
Which of the following is least likely to be found free in nature?
Range Threshold
The minimum and maximum values within which a particular sensory stimulus, action, or phenomenon is perceptible or has an effect.
Receptors
Protein molecules on the surfaces of dendrites and cell bodies that have distinctive shapes and will interact only with specific neurotransmitters.
Activation
in psychology, refers to the arousal level of the central nervous system, influencing alertness and responsiveness to stimuli.
Absolute Thresholds
The smallest intensity of a stimulus that must be present for it to be detected at least half the time by a subject.
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