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neurogenesis

n. the production of new neurons during early nervous system development and throughout the lifespan. The failure or interruption of neurogenesis is implicated in neurological diseases such as Alzheimer’s and Parkinson’s, as well as in psychiatric disorders such as depression, bipolar disorder, and schizophrenia.

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Psychology term of the day

January 19th 2025

short-wavelength pigment

short-wavelength pigment

the photopigment present in one of the three populations of retinal cones that has maximum sensitivity to a wavelength of 419 nm. The absence of the gene for the short-wavelength pigment causes tritanopia, a form of color blindness in which blue and green are confused with one another. See also long-wavelength pigment; medium-wavelength pigment.