(a)Top: Example image of lightly anaesthetized mouse after unilateral VMC blockade (left hemisphere) by muscimol injection, showing protraction of contralateral whiskers. Bottom: Example whisking pattern from the same mouse showing large whisker movements contralaterally, and smaller whisker movements ipsilaterally.
(b)After VMC blockade, the whisker set point is higher contralaterally (red markers) than ipsilaterally (blue markers) to the blocked hemisphere (N = 4 mice). Round markers indicate that only deep VMC was blocked, square markers indicate that both deep and superficial VMC was blocked.
(c)After VMC blockade, the whisking power is much higher (~8 fold) in the contralateral whiskers than in the ipsilateral whiskers (Markers indicate ratio of contralateral to ipsilateral whisker power). Round markers indicate that only deep VMC was blocked, square markers indicate that both deep and superficial VMC was blocked.
(d)Example ipsilateral (blue) and contralateral (red) whisking traces of whisker micromovements which escape light anaesthesia (Whisker arc 1) in another mouse, showing the whisking patterns at a longer time scale.