moving-edge detector

any of the cells in the visual system that respond best to a dark–light border moved through the receptive field. A particular speed and direction of movement may be required to elicit the optimum response from a moving-edge detector. See also feature detector.

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Psychology term of the day

November 21st 2024

feedback system

a circuit in which output information (e.g., biological, mechanical) is used to modulate the input to the same circuit. In a negative feedback system, the output is used to reduce the input; such systems play important roles in maintaining equilibrium of processes within organisms. See homeostasis; positive feedback.