Topographical agnosia—sometimes called topographic disorientation, landmark agnosia, or visuospatial dysgnosia—is an acquired or developmental inability to ...
Dr. Hadeel Abaza, MD - Orthopedic and Musculoskeletal Disorders
Akinetopsia, often called cerebral motion blindness, is a rare neuropsychological disorder in which an individual loses the ability to perceive motion, despite ...
Cerebral achromatopsia is an acquired loss of color vision that happens inside the brain, not in the eye. A stroke, head injury, tumor, infection, inflammation ...
Simultanagnosia is a rare neurological disorder in which a person cannot perceive more than one object at a time within a visual scene. Even though each ...
Integrative Visual Agnosia (IVA) is a rare neurological disorder in which a person can see the basic parts of an object (such as its lines or shapes) but ...
Associative visual agnosia is a neurological disorder in which a person can perceive basic visual elements—such as shape, color, and contour—but cannot link ...
Apperceptive Visual Agnosia is a neurological disorder in which individuals, despite having intact basic vision (visual acuity, color perception, and field of ...
Stereognosis disconnection—commonly termed astereognosis—is the inability to identify and appreciate the three‐dimensional form of an object through touch ...
Two-point discrimination (TPD) is the smallest distance at which a person can feel two separate touches instead of one. It is a practical test of tactile ...
Tactile extinction is a neuropsychological phenomenon in which a person fails to perceive a touch stimulus on one side of the body when two touches are applied ...
Finger agnosia is a neuropsychological condition in which a person loses the ability to identify, name, or distinguish their own fingers (or those of another ...
Agraphesthesia is a neurological deficit characterized by an individual’s inability to recognize symbols, letters, or numbers traced on the skin, most commonly ...
Astereognosis is the neurological condition in which a person loses the ability to recognize objects by touch, despite having intact basic sensory functions ...
Optic ataxia without simultanagnosia is a neurovisual disorder characterized by a selective difficulty in reaching for and interacting with objects under ...
Visual Object Agnosia is a neurological disorder characterized by the inability to recognize, identify, or interpret visually presented objects, despite intact ...
Balint’s syndrome is a rare neurological disorder characterized by a triad of visuospatial and oculomotor impairments. It most commonly arises after bilateral ...
Anton’s syndrome, also known as visual anosognosia, is a rare neurological condition in which a person who is cortically blind denies or is unaware of their ...
Akinetopsia, often called “motion blindness,” is a rare neurovisual disorder where an individual loses the ability to perceive motion smoothly. Instead of ...
Achromatopsia, often called total color blindness, is a rare vision disorder in which individuals cannot perceive any colors and see the world only in shades ...
Somatosensory disconnection syndromes are a group of neurological disorders in which the brain’s ability to receive, integrate, and interpret touch, position, ...
