Role of posterior parietal gamma activity in planning prosaccades and antisaccades.
نویسندگان
چکیده
Karim Jerbi,1,2 Carlos M. Hamamé,3 Tomás Ossandón,1,4 and Sarang S. Dalal1 1INSERM U821, Dynamique Cérébrale et Cognition, 69500 Lyon, France, 2Laboratoire de Physiologie de la Perception et de l’Action, UMR 7152, Collège de France, CNRS, 75005 Paris, France, 3Programa de Doctorado en Ciencias Biomédicas, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile, and 4École Doctorale Neurosciences et Cognition, Université Claude Bernard Lyon I, 69622 Villeurbanne cedex, France
منابع مشابه
Gamma-band activity in human posterior parietal cortex encodes the motor goal during delayed prosaccades and antisaccades.
Although it is well established that parietal cortex is important in processing sensorimotor transformations, less is known about the neuronal dynamics of this process in humans. Using magnetoencephalography, we investigated the dynamics of parietal oscillatory activity during saccade planning in terms of sensory and motor goal processing. In the experiments, a peripheral stimulus was flashed i...
متن کاملModulation of antisaccades by transcranial magnetic stimulation of the human frontal eye field.
It has been suggested that the frontal eye field (FEF), which is involved with the inhibition and generation of saccades, is engaged to a different degree in pro- and antisaccades. Pro- and antisaccades are often assessed in separate experimental blocks. In such cases, saccade inhibition is required for antisaccades but not for prosaccades. To more directly assess the role of the FEF in saccade...
متن کاملNeural processes associated with antisaccade task performance investigated with event-related FMRI.
One of the hallmarks of cognitive control is the suppression of prepotent but inappropriate responses. Here we used event-related functional MRI to measure functional brain activation during a stimulus-response incompatibility task. Subjects were instructed before a stimulus appeared either to look at the stimulus (prosaccade) or to look away from the stimulus (antisaccade). Eye movements were ...
متن کاملFrontoparietal activation with preparation for antisaccades.
Several current models hold that frontoparietal areas exert cognitive control by biasing task-relevant processing in other brain areas. Previous event-related functional magnetic resonance imaging (fMRI) studies have compared prosaccades and antisaccades, which require subjects to look toward or away from a flashed peripheral stimulus, respectively. These studies found greater activation for an...
متن کاملEnhanced modulation of neuronal activity during antisaccades in the primate globus pallidus.
The antisaccade task has been widely used to investigate the neural mechanisms underlying volitional movement control. In this task, subjects suppress reflexive saccades to the sudden appearance of peripheral visual stimuli (prosaccades) and generate a saccade in the opposite direction. Recent imaging studies suggest that the globus pallidus (GP) is involved in the generation of antisaccades. T...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of neuroscience : the official journal of the Society for Neuroscience
دوره 28 51 شماره
صفحات -
تاریخ انتشار 2008