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contrast detector

1. any of the retinal ganglion cells that are sensitive to contrast (i.e., light–dark borders). See also feature detector.

2. any structure, neural or theoretical, that is sensitive to contrast.

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Psychology term of the day

March 16th 2025

surrogate

surrogate

n.

1. a person or object that substitutes for the role of an individual who has a significant position in a family or group. See father surrogate; mother surrogate.

2. more generally, any person or entity that substitutes for another.