Cerebral Cortex Advance Access published online on September 15, 2004
Cerebral Cortex, doi:10.1093/cercor/bhh167
© 2004 by Oxford University Press
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1 LENA CNRS UPR 640, Hôpital de la Pitié-Salpétrière, 47 Bd de l'Hôpital, 75013 Paris, France; INSERM U280, 151 cours Albert Thomas, 69003 Lyon, France
* To whom correspondence should be addressed. E-mail: catherine.tallon-baudry{at}chups.jussieu.fr.
We studied the existence, localization and attentional modulation of gamma-band oscillatory activity (30-130 Hz) in the human intracranial region. Two areas known to play a key role in visual object processing: the lateral occipital (LO) cortex and the fusiform gyrus. These areas consistently displayed large gamma oscillations during visual stimulus encoding, while other extrastriate areas remained systematically silent, across 14 patients and 291 recording sites scattered throughout extrastriate visual cortex. The lateral extent of the responsive regions was small, in the range of 5 mm. Induced gamma oscillations and evoked potentials were not systematically co-localized. LO and the fusiform gyrus displayed markedly different patterns of attentional modulation. In the fusiform gyrus, attention enhanced stimulus-driven gamma oscillations. In LO, attention increased the baseline level of gamma oscillations during the expectation period preceding the stimulus. Subsequent gamma oscillations produced by attended stimuli were smaller than those produced by unattended, irrelevant stimuli. Attentional modulations of gamma oscillations in LO and the fusiform gyrus were thus very different, both in their time-course (preparatory period and/or stimulus processing) and direction of modulation (increase or decrease). Our results thus suggest that the functional role of gamma oscillations depends on the area in which they occur.
Article
Attention Modulates Gamma-band Oscillations Differently in the Human Lateral Occipital Cortex and Fusiform Gyrus
2 INSERM U280, 151 cours Albert Thomas, 69003 Lyon, France
3 Hôpital Neurologique, 59 Bd Pinel, 69003 Lyon, France
Abstract 
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  S. Ray, N. E. Crone, E. Niebur, P. J. Franaszczuk, and S. S. Hsiao Neural Correlates of High-Gamma Oscillations (60-200 Hz) in Macaque Local Field Potentials and Their Potential Implications in Electrocorticography J. Neurosci., November 5, 2008; 28(45): 11526 - 11536. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Ray, S. S. Hsiao, N. E. Crone, P. J. Franaszczuk, and E. Niebur Effect of Stimulus Intensity on the Spike-Local Field Potential Relationship in the Secondary Somatosensory Cortex J. Neurosci., July 16, 2008; 28(29): 7334 - 7343. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
V. Wyart and C. Tallon-Baudry Neural Dissociation between Visual Awareness and Spatial Attention J. Neurosci., March 5, 2008; 28(10): 2667 - 2679. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J.P. Lachaux, J. Jung, N. Mainy, J.C. Dreher, O. Bertrand, M. Baciu, L. Minotti, D. Hoffmann, and P. Kahane Silence Is Golden: Transient Neural Deactivation in the Prefrontal Cortex during Attentive Reading Cereb Cortex, February 1, 2008; 18(2): 443 - 450. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Silver, K. Boahen, S. Grillner, N. Kopell, and K. L. Olsen Neurotech for Neuroscience: Unifying Concepts, Organizing Principles, and Emerging Tools J. Neurosci., October 31, 2007; 27(44): 11807 - 11819. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. N. Landau, M. Esterman, L. C. Robertson, S. Bentin, and W. Prinzmetal Different Effects of Voluntary and Involuntary Attention on EEG Activity in the Gamma Band J. Neurosci., October 31, 2007; 27(44): 11986 - 11990. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Kaiser, T. Lennert, and W. Lutzenberger Dynamics of Oscillatory Activity during Auditory Decision Making Cereb Cortex, October 1, 2007; 17(10): 2258 - 2267. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Fan, J. Byrne, M. S. Worden, K. G. Guise, B. D. McCandliss, J. Fossella, and M. I. Posner The Relation of Brain Oscillations to Attentional Networks J. Neurosci., June 6, 2007; 27(23): 6197 - 6206. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. B. Sederberg, A. Schulze-Bonhage, J. R. Madsen, E. B. Bromfield, D. C. McCarthy, A. Brandt, M. S. Tully, and M. J. Kahana Hippocampal and Neocortical Gamma Oscillations Predict Memory Formation in Humans Cereb Cortex, May 1, 2007; 17(5): 1190 - 1196. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Fan, R. Kolster, J. Ghajar, M. Suh, R. T. Knight, R. Sarkar, and B. D. McCandliss Response Anticipation and Response Conflict: An Event-Related Potential and Functional Magnetic Resonance Imaging Study J. Neurosci., February 28, 2007; 27(9): 2272 - 2282. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. Osipova, A. Takashima, R. Oostenveld, G. Fernandez, E. Maris, and O. Jensen Theta and gamma oscillations predict encoding and retrieval of declarative memory. J. Neurosci., July 12, 2006; 26(28): 7523 - 7531. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. Summerfield, T. Egner, J. Mangels, and J. Hirsch Mistaking a House for a Face: Neural Correlates of Misperception in Healthy Humans Cereb Cortex, April 1, 2006; 16(4): 500 - 508. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Pavlova, N. Birbaumer, and A. Sokolov Attentional Modulation of Cortical Neuromagnetic Gamma Response to Biological Movement Cereb Cortex, March 1, 2006; 16(3): 321 - 327. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. J. Kahana The Cognitive Correlates of Human Brain Oscillations J. Neurosci., February 8, 2006; 26(6): 1669 - 1672. [Full Text] [PDF]
|
|