Plantar Grasp Reflex Hi Res .mp4 Version Here: https://www.grepmed.com/images/7303 The plantar grasp reflex is elicited by pressing a thumb against the sole of a foot just behind the toes. The state and position are the same as for eliciting the palmar grasp reflex. The response of the reflex consists of flexion and adduction of all the toes. Typically disappears around 9-12 Months