Question

How does damage to the brain affect the ability to form visual images? cognitive psychology

Answer 1

around 40-50% of the brain is involved in vision. as per a research around 20-40% of people experiencing brain injuries experience vision impairment as well. brain injuries xause vision impairments like double vision, focus, shifting gaze, binocular cues loss, light sensitivity, fatigue, eye strain, blurred near vision. the focal pathway in brain is connected to the central vision. ambient process is used to gather information through different processes and manage them such that even if you focus at one place you collect information from all other stimuli as well. the ambient process becomes less functional due to brain injuries. hence our perception of spce and ability of processing information gets damaged and the visual images get distorted. when bthe nerves related to the visual cortex get damaged then a person may also experience visual field loss i.e. a person gets blind completely or partially. whenthe brain becomes disfunctional such that the person is unable to combine visual image from both the eyes and hence results in a duble image. hence our visual image and perception is affected to a fgreat extent an in a variety of ways from the damage to our brain.