Quiz #5

Question 1

Lesions of the prefrontal cortex can result in various deficits. Which of the following are consequences of such lesions?

Answer 1

Deficits in working memory (verbal or non-verbal), poor executive functions, and intact repetition in transcortical motor aphasia

Question 2

True or False? Odor molecules bind to specific receptors on olfactory neurons in the nasal epithelium, triggering electrical signals that are transmitted to the brain’s olfactory bulb for odor identification

Answer 2

True

Question 3

Which of the following is the correct pathway for visual information processing in the CNS?

Answer 3

Retina → Optic Nerve → Optic Chiasm → Lateral Geniculate Nucleus (LGN) → Optic Radiation → Visual Cortex

Question 4

Which of the following statements correctly describes the pathway of incoming visual fibers from the retina?

Answer 4

Incoming fibers from the lower retina stay inferior and form Meyer’s loop, traveling in the temporal lobe. Incoming fibers from the upper retina stay superior and travel in the parietal lobe.

Question 5

Which of the following correctly describes the visual field defects associated with lesions in the primary visual cortex?

Answer 5

A lesion in the upper calcarine cortex results in a lower field defect, and a lesion in the lower calcarine cortex results in an upper field defect.