1 2 Simultaneous preparation of multiple potential movements : opposing effects of spatial 3 proximity mediated by premotor and parietal cortex 4 5

نویسندگان

  • Peter Praamstra
  • Dimitrios Kourtis
  • Kianoush Nazarpour
چکیده

2 Simultaneous preparation of multiple potential movements: opposing effects of spatial 3 proximity mediated by premotor and parietal cortex 4 5 Peter Praamstra, Dimitrios Kourtis, Kianoush Nazarpour 6 7 1) Behavioural Brain Sciences Centre, School of Psychology, University of 8 Birmingham 9 2) Dept. of Neurology, Queen Elizabeth Hospital, University of Birmingham 10 3) Donders Institute for Brain, Cognition and Behaviour, Radboud University, 11 Nijmegen, The Netherlands 12 13 Running head: Preparation of multiple potential actions 14 15 16 Correspondence: 17 Peter Praamstra 18 Behavioural Brain Sciences Centre, 19 University of Birmingham, 20 Birmingham B15 2TT, U.K. 21 Tel. 00-44-121-414 7211 22 Fax 00-44-121-414 4897 23 Email: [email protected] 24 25 Articles in PresS. J Neurophysiol (July 29, 2009). doi:10.1152/jn.00413.2009

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Simultaneous preparation of multiple potential movements: opposing effects of spatial proximity mediated by premotor and parietal cortex.

Neurophysiological studies in monkey have suggested that premotor and motor cortex may prepare for multiple movements simultaneously, sustained by cooperative and competitive interactions within and between the neural populations encoding different actions. Here, we investigate whether competition between alternative movement directions, manipulated in terms of number and spatial angle, is refl...

متن کامل

Cortical activity in multiple motor areas during sequential finger movements: an application of independent component analysis.

Multiple cortical regions such as the supplementary motor area (SMA), premotor cortex (PM), and primary motor cortex (M1) are involved in the sequential execution of hand movements, but it is unclear how these areas collaborate in the preparation and execution of ipsilateral and contralateral hand movements. In this study, we used right-handed subjects to examine the spatial distribution and te...

متن کامل

Functional anatomy of the mental representation of upper extremity movements in healthy subjects.

1. Differences in the distribution of relative regional cerebral blood flow during motor imagery and execution of a joy-stick movement were investigated in six healthy volunteers with the use of positron emission tomography (PET). Both tasks were compared with a common baseline condition, motor preparation, and with each other. Data were analyzed for individual subjects and for the group, and a...

متن کامل

Cerebral structures participating in motor preparation in humans: a positron emission tomography study.

1. Using positron emission tomography and measurement of regional cerebral blood flow (rCBF) as an index of cerebral activity we investigated the central processing of motor preparation in 13 healthy volunteers. 2. We used a motor reaction time paradigm with visual cues as preparatory and response signals. A preparatory stimulus (PS) provided either full, partial, or no information regarding tw...

متن کامل

Effect of Transcranial Magnetic Stimulation (TMS) on Parietal and Premotor Cortex during Planning of Reaching Movements

BACKGROUND Cerebral activation during planning of reaching movements occurs both in the superior parietal lobule (SPL) and premotor cortex (PM), and their activation seems to take place in parallel. METHODOLOGY The activation of the SPL and PM has been investigated using transcranial magnetic stimulation (TMS) during planning of reaching movements under visual guidance. PRINCIPAL FINDINGS A...

متن کامل

ذخیره 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 نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009