Janet Suffers from Severe Epileptic Seizures That Are Untreatable with Medicine

question 33

Essay

Janet suffers from severe epileptic seizures that are untreatable with medicine. Her doctor decides to perform a callostomy (severing of the corpus callosum). Following surgery, her neuropsychologist conducts some tests to assess the effects of the surgery. During a divided visual field study, Janet is flashed words to both of her visual fields and asked to read the words. When some of the images are flashed, Janet experiences difficulty stating the word that was flashed. Explain which visual field presentation likely causes Janet the most difficulty when asked to state the word that was flashed and why.

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Definitions:

Interneuron

An interneuron is a type of neuron that transmits signals between sensory and motor neurons, playing a critical role in reflexes and neuronal circuits.

Sensory Neurons

Neurons responsible for converting external stimuli from the environment into internal electrical impulses for the brain to interpret as sensations.

Interneurons

Neurons that transmit signals between other neurons, especially as part of reflexes or neural networks.

Motor Neurons

Neurons that transmit impulses from the spinal cord or brain to muscle or glandular tissues, facilitating movement and action.