Somatosensory and Motor Plasticity

Where is the primary somatosensory cortex located?

In the postcentral gyrus

T/F: in primary somatosensory cortex, the head is represented more laterally and the leg is more medial

TRUE

What does asking someone to identify common objects by holding andmanipulating them without seeing them test?

Stereognosis

The capacity of the nervous system to undergo change is called what?

Plasticity

Which of the following situations would NOT likely change the S1 map?

Continuing to do typical activities with no change

Neural plasticity occurs via changes in….

Synaptic efficacy, neuron structure, pathways/networks and behavior

T/F: neural mechanisms for plasticity are the same as the neural mechanisms for learning

TRUE

T/F: plasticity is a fundamental property of the CNS and is always occuring

TRUE

T/F: there is motor redundancy both within and across brain areas

TRUE

Redundant motor pathways are critical for which form of plasticity?

Unmasking of existing connections

Motor plasticity occurs with increased or decreased activity?

It occurs with BOTH increased and decreased activity

T/F: motor plasticity is specific to the particular movement pattern that is repeated many times

TRUE

Greater plasticity is seen when a task is routine, novel, or unskilled?

Novel

What type of training is most likely to influence motor maps in M1?

Skill training

Motor system changes take place in response to what?

Experience, development, and injury