AP PSYCHOLOGY

Detailed explanation-1: -Background: Occipital stroke patients mainly showed cortical blindness and unilateral vision loss; memory is generally reserved.

Detailed explanation-2: -Damage to the occipital lobe results in complete or partial blindness or visual agnosia depending on the location and severity of the damage. Vision begins with the spatial, temporal, and chromatic components of light falling on the photoreceptors of the retina and ends in the perception of the world around us.

Detailed explanation-3: -A stroke in the occipital lobe often causes vision problems since this area of the brain processes visual input from the eyes. A stroke can be isolated to the occipital lobe, or it may be more widespread, affecting nearby brain structures such as the cerebellum, brain stem, thalamus, or temporal lobe.

Detailed explanation-4: -Damage to the occipital lobe can include: Visual illusions-inaccurately seeing objects. Word blindness-inability to recognise words. Difficulty in recognizing drawn objects. Inability to recognize the movement of an object (Movement Agnosia)

Detailed explanation-5: -In those with early or congenital blindness, their occipital lobe is still very active. However, that activity happens when they use their other senses, such as smell, hearing and touch. The occipital lobe of a person with blindness also becomes more active when they’re speaking or listening to others talking.