Achromatognosia
Definition
A rare neurological disorder (gnosic) characterized by the patient's inability to recognize, identify, or name colors, even though their peripheral visual system, retina, and optic nerve are structurally intact. This condition is usually caused by lesions located in the occipito-temporal cerebral cortex (associative visual area) and often manifests within visual agnosia.
Bilingual Equivalents
- Achromatognosia
- Color agnosia
Grammatical & Source Details
| Inflection Type | Feminine noun with regular technical plural boundaries. |
| Formation | Learned compound combining 'acromato-' (without color) with the suffix of recognition '-gnosia' (knowledge). |
| Spelling / Pronunciation | [a.kro.ma.tog.no.ˈzi.e] |
| Source | Lexicon of Cognitive Neuroscience and Visual Pathologies |
Contextual Usage Examples
RO: În urma accidentului vascular cerebral, pacientul a dezvoltat o acromatognozie severă, confundând denumirile nuanțelor de bază.
EN: Following the stroke, the patient developed a severe achromatognosia, confusing the names of the primary shades.
RO: Medicul a efectuat teste neuropsihologice speciale pentru a diferenția o acromatognozie de un daltonism de natură retiniană.
EN: The doctor performed special neuropsychological tests to differentiate achromatognosia from a retinal-based color blindness.
RO: O acromatognozie izolată este extrem de rară, fiind de cele mai multe ori însoțită de alexie sau agnozie obiectuală.
EN: An isolated achromatognosia is extremely rare, being most often accompanied by alexia or object agnosia.
Idioms & Phrases
Acromatognozie corticală / Cortical achromatognosia
RO: Formă de agnozie declanșată direct de distrugerea neuronilor din ariile vizuale secundare ale lobului occipital.
EN: A form of agnosia triggered directly by the destruction of neurons within the secondary visual areas of the occipital lobe.
Testare pentru acromatognozie / Testing for achromatognosia
RO: Protocol clinic ce implică sortarea obiectelor după nuanță fără utilizarea indiciilor verbale pentru a evalua funcția gnozică.
EN: A clinical protocol involving sorting objects by hue without using verbal cues to evaluate gnosic function.
Acromatognozie dobândită / Acquired achromatognosia
RO: Pierderea capacității de identificare a culorilor apărută la vârsta adultă în urma unui traumatism cranio-cerebral direct.
EN: The loss of the ability to identify colors occurring in adulthood following a direct cranio-cerebral trauma.
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