PSYCH 330 1st Edition Lecture 18Touch1. Visual cortex gives you the image, that info travels through the ventral stream and tellsyou what it is and then the dorsal stream tells you how to use itif you severe the dorsal stream you CANNOT grasp but can identifyif you severe the ventral you CANNOT identify but can grasp2.Frontal lobeplans for motion; answers: how do i respond? how do i accomplish myresponse and with which muscles? prefrontal cortexplans, premotor cortexsequences,musclesmotor cortex3. Cortex gives message to spinal cordlateral corticospinalaway, goes from cortex to spinal cord, information crosses, responsible forindependent movement of hands, limbsventral corticospinaltravels straight down, balance/posture4. Lateral corticospinal crosses over to get to motor neurons interneurons within corticospinal pathway act as the bridge from corticospinal to motor motor neurons project to musclesThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.5. Touch pressure, pain, heat, weightreaching out depends on where YOU are in space=proprioceptionneed to know how much you have to move to get where you want to be6. The receptor cell’s information goes through tracts either dorsal(touch) orspinothalamic tract(pain/temp)7. Graspinghow strong is mediated by basal ganglia cerebellum makes adjustments8. Brain given the message that it is graspedVisionwhat is this?>plan for movement> cortex>neuronsonce touching you assess howhot/heavy is this?>these messages are sent through tracts>structures in brain edit based on thatinfo and send messages to muscles to respond accordingly>tell brain it is