Cortical Sensorimotor Reverberations

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Presentation transcript:

Cortical Sensorimotor Reverberations Sylvain Crochet, Carl C.H. Petersen Neuron Volume 86, Issue 5, Pages 1116-1118 (June 2015) DOI: 10.1016/j.neuron.2015.05.030 Copyright © 2015 Elsevier Inc. Terms and Conditions

Figure 1 Reciprocal Excitatory Interactions between Hindlimb Primary Sensorimotor Cortex and Secondary Motor Cortex May Contribute Importantly to Generating Sensory Percepts (A) Schematic drawing of a mouse brain indicating reciprocal excitatory synaptic connectivity between hindlimb primary sensorimotor cortex (S1/M1) and a frontal secondary motor area (M2). S2, secondary somatosensory cortex. (B) Schematic sequence of activity evoked by hindlimb stimulation. Early action potential (AP) firing in S1/M1 (red) is followed by firing of M2 neurons (blue) and then late firing in S1/M1. (C) Schematic drawing of the cortical circuit generating reverberating activity between S1/M1 and M2. Sensory-evoked activity in S1/M1 drives M2 neurons through feedforward connections. M2 drives S1/M1 through feedback connections in part located on the apical dendrites of layer 5 pyramidal cells in layer 1 (L1). Neuron 2015 86, 1116-1118DOI: (10.1016/j.neuron.2015.05.030) Copyright © 2015 Elsevier Inc. Terms and Conditions