For the Spanish film, see Agnosia (film). For the moth genus, see Agnosia (moth).
Medical condition
Agnosia
Agnosia causes loss of the ability to recognize or comprehend the meaning of objects even with intact senses.
Specialty
Psychiatry, Neurology, Neuropsychology
Picture of the ventral and dorsal streams. The ventral stream is depicted in purple and the dorsal stream is depicted in green.
Agnosia is a neurological disorder characterized by an inability to process sensory information. Often there is a loss of ability to recognize objects, persons, sounds, shapes, or smells while the specific sense is not defective nor is there any significant memory loss.[1] It is usually associated with brain injury or neurological illness, particularly after damage to the occipitotemporal border, which is part of the ventral stream.[2] Agnosia only affects a single modality,[3] such as vision or hearing.[4] More recently, a top-down interruption is considered to cause the disturbance of handling perceptual information.[5]
^"Agnosia". BrainFacts.org. Retrieved 15 August 2023.
^Kolb, Bryan; Whishaw, Ian Q. (3 March 2003). Fundamentals of Human Neuropsychology. Worth Publishers. ISBN 978-0-7167-5300-1.
^Burns, MS (2004). "Clinical management of agnosia". Top Stroke Rehabil. 11 (1): 1–9. doi:10.1310/N13K-YKYQ-3XX1-NFAV. PMID 14872395. S2CID 5758683. Archived from the original on 2013-01-28.
^"NINDS Agnosia Information Page". National Institute of Neurological Disorders and Stroke. Archived from the original on 2013-01-27. Retrieved 2012-03-28.
^"Agnosia". Archived from the original on 2017-05-26. Retrieved 2016-12-16.
Agnosia is a neurological disorder characterized by an inability to process sensory information. Often there is a loss of ability to recognize objects...
Visual agnosia is an impairment in recognition of visually presented objects. It is not due to a deficit in vision (acuity, visual field, and scanning)...
Prosopagnosia (from Greek prósōpon, meaning "face", and agnōsía, meaning "non-knowledge"), also known as face blindness, is a cognitive disorder of face...
Auditory agnosia is a form of agnosia that manifests itself primarily in the inability to recognize or differentiate between sounds. It is not a defect...
Auditory verbal agnosia (AVA), also known as pure word deafness, is the inability to comprehend speech. Individuals with this disorder lose the ability...
type of agnosia where perception occurs but recognition still does not occur. When referring to apperceptive agnosia, visual and object agnosia are most...
Finger agnosia, first defined in 1924 by Josef Gerstmann, is the loss in the ability to distinguish, name, or recognize the fingers—not only the patient's...
Astereognosis (or tactile agnosia if only one hand is affected) is the inability to identify an object by active touch of the hands without other sensory...
Associative visual agnosia is a form of visual agnosia. It is an impairment in recognition or assigning meaning to a stimulus that is accurately perceived...
are completely distinct. A similar, but distinct, deficit called color agnosia exists in which a person has intact color perception (as measured by a...
of inattentional blindness include inattentional amnesia, inattentional agnosia and change blindness. An explanation for this phenomenon is that observers...
space," and is clinically described as such. Autotopagnosia is a form of agnosia, characterized by an inability to localize and orient different parts of...
kinds of agnosia that affect every one of our senses, but the two most common related to speech are speech agnosia and phonagnosia. Speech agnosia: Pure...
Integrative agnosia is a sub-disease of agnosia, meaning the lack of integrating perceptual wholes within knowledge. Integrative agnosia can be assessed...
from music. People with this condition, unlike those suffering from music agnosia, can recognize and understand music but fail to enjoy it. Research has...
monograph of 1891, Zur Auffassung der Aphasien, in which he coined the term agnosia and counselled against a too locationist view of the explanation of neurological...
for "shape decomposition" or Gestalt decomposition) is a type of visual agnosia and is a psychological phenomenon where delays in recognition are observed...
Agnosia orneus is a species of moth of the family Sphingidae first described by George Hampson in 1907. It is known from India. "CATE Creating a Taxonomic...
subcortical processing of the stimulus, this is known as an agnosia. Furthermore, agnosia is often linked to experiencing hardship in regard to stimuli...
Agnosia microta is a species of moth of the family Sphingidae first described by George Hampson in 1907. It is known from India. "CATE Creating a Taxonomic...
Patient DF is a woman with visual apperceptive agnosia who has been studied extensively due to the implications of her behavior for the two streams theory...
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