Question

question 49
in one classic experiment, monkeys had difficulty letting go of food after their
ventromedial corticospinal tracts were transected.
dorsolateral corticospinal tracts were transected.
dorsolateral corticorubrospinal tracts were transected.
basal ganglia were lesioned.

Explanation:

When the dorsolateral corticospinal tracts are transected, monkeys have difficulty releasing objects they are grasping, like food. These tracts are important for fine - control of distal limb muscles involved in releasing grip.

Answer:

B. dorsolateral corticospinal tracts were transected.