Neural Dynamics of Reaching following Incorrect or Absent Motor Preparation
نویسندگان
چکیده
منابع مشابه
Neural Dynamics of Reaching following Incorrect or Absent Motor Preparation
Moving is thought to take separate preparation and execution steps. During preparation, neural activity in primary motor and dorsal premotor cortices achieves a state specific to an upcoming action but movements are not performed until the execution phase. We investigated whether this preparatory state (more precisely, prepare-and-hold state) is required for movement execution using two complem...
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The primary motor cortex (M1) plays a prominent role in the initiation and control of voluntary movements. Due to its direct link with behaviour, M1 is an ideal platform to study how brain state and behaviour are related to single neuron dynamics. We perform patch-clamp recordings and somatic current injections in the M1 of awake mice to characterise the intracellular activity and integrative p...
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The study of the motor cortex in behaving monkeys during the past 20 years has provided important information on the brain mechanisms underlying motor control. With respect to reaching movement in space, a key role of motor cortex in specifying the direction of reaching has been proposed on the basis of results from studies of the activity of cells and cell populations during reaching. These re...
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3 Hirokazu Tanaka and Terrence J. Sejnowski 4 5 1 Howard Hughes Medical Institute, Computational Neurobiology Laboratory, The Salk Institute for 6 Biological Studies, La Jolla, CA 92037 7 2 School of Information Science, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa 8 9231211, Japan 9 3 Division of Biological Sciences, University of California at San Diego, La Jolla, CA 920...
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How neurons in the primary motor cortex control arm movements is not yet understood. Here we show that the equations of motion governing reaching simplify when expressed in spatial coordinates. In this fixed reference frame, joint torques are the sums of vector cross products between the spatial positions of limb segments and their spatial accelerations and velocities. The consequences that fol...
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ژورنال
عنوان ژورنال: Neuron
سال: 2014
ISSN: 0896-6273
DOI: 10.1016/j.neuron.2013.11.003