Question

What happens to corollary discharge with a lesion to the frontal lobe?

a. Increased accuracy in sensory predictions.
b. Decreased suppression of self-generated sensations.
c. Enhanced sensory integration.
d. Unaffected predictive signals to the visual cortex.

Answer 1

Lesions to the frontal lobe are likely to lead to decreased suppression of self-generated sensations due to disrupted corollary discharge, resulting in an impaired ability to differentiate between self-induced and external stimuli.

Step-by-step explanation:

With a lesion to the frontal lobe, corollary discharge, which is a predictive signal sent to the visual cortex to account for the motion of the eyes, could be affected. In this context, the most likely consequence of a lesion to the frontal lobe would be decreased suppression of self-generated sensations. This means that the ability to predict and thereby cancel out the sensory effects of one's own movements might be compromised, leading to a difficulty in distinguishing between self-generated and external stimuli.

The frontal lobe is crucial for the planning and execution of movements, and it interacts with sensory systems as part of motor control. A lesion in the frontal lobe can disrupt this process and impair the brain's ability to send appropriate predictive signals or process incoming sensory information correctly.