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Responses in excitatory and inhibitory networks of firing-rate neurons. A. Response of a purely excitatory recurrent network to a square step of input (hE).
The blue curve is the response without excitatory feedback. Adding recurrent excitation increases the response but makes it rise and fall more slowly (solid
red curve). The dashed red curve is a smaller copy of the solid red curve (scaled by a factor of 0.5) so that the time course of the solid red and blue curves
can be compared more easily.
B. Response of a purely inhibitory recurrent network to a square step of input (hI). The blue curve shows the response without recurrent inhibition. Adding
recurrent inhibition
decreases
theApproaches
response but
it rise and
fall morefrom
rapidly
(solid
red curve).
The dashed
red curve
is a larger
(2X) Fifth
copyEditon
of the solid
Source:
Theoretical
to makes
Neuroscience:
Examples
Single
Neurons
to Networks,
Principles
of Neural
Science,
red curve.
Citation: Kandel ER, Schwartz JH, Jessell TM, Siegelbaum SA, Hudspeth AJ, Mack S. Principles of Neural Science, Fifth Editon; 2012 Available
C. Response of an
network to two
input pulses
(hE).
The response is the integral of the input and remains constant when the input is not
at:integrator
http://mhmedical.com/
Accessed:
May 09,
2017
present.
Copyright © 2017 McGraw-Hill Education. All rights reserved
D. Response of the excitatory population in a mixed excitatory/inhibitory recurrent network to input to the excitatory neurons (hE). The excitatory