Question

During an awake craniotomy (a type of brain surgery), patients remain awake and alert throughout the surgery. This allows the surgeon to ask the patient questions and monitor their responses in order to minimize the risk of causing damage to brain structures that would result in impairments to language, speech, or motor skills. 8. If the surgeon electrically stimulated the region of the left hemisphere that is the frontal lobe how is the patient most likely to respond? The patient will report feeling a pinching sensation somewhere on the left side of the body. The patient will report feeling a pinching sensation somewhere on the right side of the body. The patient will report feeling a pinching sensation in the same location on both sides of the body. The patient will move a body part somewhere on the left side of the body. The patient will move a body part somewhere on the right side of the body. The patient will move the same body part on both sides of the body.

Answer 1

The patient will move a body part somewhere on the left side of the body. Option D

If the surgeon electrically stimulates the left frontal lobe during an awake craniotomy, the patient is likely to respond by moving a left-sided body component. This happens because the brain's motor control system is contralateral, meaning that the left hemisphere controls movement on the right side of the body.

When the left frontal lobe is stimulated, motor regions on the other side become active and can move voluntarily. The surgeon can more easily locate and safeguard important brain regions related to speech, language, and motor functions thanks to this accurate mapping.