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nature neuroscience volume 5 no 5 may 2002 391 Neurons are often classified as simple
 

Summary: nature neuroscience volume 5 no 5 may 2002 391
Neurons are often classified as simple
or complex according to the degree of
modulation in their responses to a grat-
ing, consisting of alternating light and dark
stripes, moved steadily across their recep-
tive fields3. Simple cells respond to a mov-
ing grating with an oscillating firing rate
that is high when the grating is in register
with their receptive-field template and low
(or zero) when the alignment is poor. The
response of a complex cell to a moving
grating tends to be sustained, rather than
oscillatory, because the complex cell is not
sensitive to the positioning of the grating
as it moves. The degree of modulation is
quantified by the ratio F1/F0, which is the
amplitude of the best sine wave fit to the
firing rate at the frequency defined by the
motion of the grating divided by the aver-

  

Source: Abbott, Laurence - Center for Neurobiology and Behavior & Department of Physiology and Cellular Biophysics, Columbia University

 

Collections: Biology and Medicine