Paper Info
Title
Spike Frequency Adaptation Affects the Synchronization Properties of Networks of Cortical Oscillators
Abstract
Oscillations in many regions of the cortex have common temporal characteristics with dominant frequencies centered around the 40 Hz (gamma) frequency range and the 5–10 Hz (theta) frequency range. Experimental results also reveal spatially synchronous oscillations, which are stimulus dependent (Gray&Singer, 1987;Gray, König, Engel, & Singer, 1989; Engel, König, Kreiter, Schillen, & Singer, 1992). This rhythmic activity suggests that the coherence of neural populations is a crucial feature of cortical dynamics (Gray, 1994). Using both simulations and a theoretical coupled oscillator approach, we demonstrate that the spike frequency adaptation seen in many pyramidal cells plays a subtle but important role in the dynamics of cortical networks. Without adaptation, excitatory connections among model pyramidal cells are desynchronizing. However, the slow processes associated with adaptation encourage stable synchronous behavior.
Year
DOI
Venue
1998
10.1162/089976698300017511
Neural Computation
Keywords
DocType
Volume
oscillations
Journal
10
Issue
ISSN
Citations 
4
0899-7667
29
PageRank 
References 
Authors
3.96
6
3
Name
Order
Citations
PageRank
Sharon M. Crook17712.01
Bard Ermentrout21098161.49
James M. Bower3477113.09