scotoma

n. an area of partial or complete loss of vision in the visual field. Vision may be depressed (relative scotoma), altered (scintillating scotoma), or completely lost (absolute scotoma). Scotomas can occur either in the central visual field (see central scotoma) or in the periphery (see paracentral scotoma). See also visual field defect.

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Psychology term of the day

May 9th 2024

cognitive ethology

the study of mental experiences, including consciousness and intentionality, in nonhuman animals and of the influence of these experiences on the animals’ behavior as they interact with their natural environment. Whether, and which, animals actually possess consciousness and intentionality remains a subject of controversy. [proposed in 1978 by U.S. zoologist Donald Redfield Griffin (1915–2003)]