Thu, 21 Aug 2008 01:25:30 BST CiteULike: j-ito's Keren http://www.citeulike.org/user/j-ito/author/Keren CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/j-ito/article/2804535 <i>Neuron, Vol. 58, No. 3. (8 May 2008), pp. 429-441.</i><br /><br />Summary The induced gamma-band EEG response (iGBR) recorded on the scalp is widely assumed to reflect synchronous neural oscillation associated with object representation, attention, memory, and consciousness. The most commonly reported EEG iGBR is a broadband transient increase in power at the gamma range ~200-300 ms following stimulus onset. A conspicuous feature of this iGBR is the trial-to-trial poststimulus latency variability, which has been insufficiently addressed. Here, we show, using single-trial analysis of concomitant EEG and eye tracking, that this iGBR is tightly time locked to the onset of involuntary miniature eye movements and reflects a saccadic "spike potential." The time course of the iGBR is related to an increase in the rate of saccades following a period of poststimulus saccadic inhibition. Thus, whereas neuronal gamma-band oscillations were shown conclusively with other methods, the broadband transient iGBR recorded by scalp EEG reflects properties of miniature saccade dynamics rather than neuronal oscillations. Transient Induced Gamma-Band Response in EEG as a Manifestation of Miniature Saccades Shlomit Yuval-Greenberg Orr Tomer Alon Keren Israel Nelken Leon Deouell doi:10.1016/j.neuron.2008.03.027 Neuron, Vol. 58, No. 3. (8 May 2008), pp. 429-441. 2008-05-16T06:19:08-00:00 2008 Neuron 58 3 429 441 eeg eye-movement gamma human oscillation vision