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An adrenergic mechanism for visual neuroregulation
Author(s) -
Coppola Robert J.,
Rolek Dennis F.,
Kramer Stanley Z.
Publication year - 1975
Publication title -
journal of neuroscience research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.72
H-Index - 160
eISSN - 1097-4547
pISSN - 0360-4012
DOI - 10.1002/jnr.490010305
Subject(s) - epinephrine , erg , retina , lobe , electroretinography , adrenergic , neurotransmission , neuroscience , optic nerve , medicine , endocrinology , anatomy , biology , receptor
Studies of the diffuse electroretinogram (ERG) and evoked responses in the optic lobe in the baby chick have shown that epinephrine produces changes in both. Epinephrine produces enhancement of the a‐wave and depression of the b‐ and d‐waves in both intact and isolated eyes. In the optic lobe it produces enhancement of both components of the evoked response. The presence of epinephrine in the vertebrate retina and the optic lobe of chicks suggests that these changes may reflect the involvement of epinephrine in synaptic transmission.