The loss of ability to recognize objects is called?

Appeared in: AIIMS Patna NO - 2020

Explanation

Agnosia is defined as the inability to recognize or identify objects, people, or sounds using one or more of the senses, despite otherwise normally functioning senses.
The condition results from damage to specific brain areas, particularly the occipitotemporal region, which is involved in processing visual information and linking it to memory and meaning.
Visual object agnosia is the specific term for the inability to recognize common objects visually, which directly matches the question's description.
A key feature is that the deficit is one of recognition, not a primary sensory loss like blindness or deafness.

Option A: Dysarthria is a motor speech disorder. It affects the muscles used for speech, leading to slurred, slow, or difficult-to-understand speech. It does not affect the ability to recognize objects.
Option B: Alexia, also known as 'word blindness,' is the inability to comprehend written language due to a brain lesion. It is a reading disorder, not a disorder of object recognition.
Option C: Ataxia is a neurological sign consisting of a lack of voluntary coordination of muscle movements. It affects gait, balance, and fine motor skills, but not the cognitive ability to recognize objects.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Terminology of Neurological Deficits as background academic context rather than a clinical decision trigger.
Nurses must be able to differentiate these conditions to perform accurate neurological assessments and report findings correctly.
Patient safety is a major concern with agnosia. A patient might not recognize a hot stove, a sharp object, or even a familiar caregiver, increasing the risk of injury or distress.
Nursing interventions for a patient with agnosia include maintaining a safe and predictable environment, using alternative senses to help with recognition (e.g., tactile or auditory cues), and providing clear, simple communication.

How to Approach the Question

First, identify the key phrase in the question stem: 'loss of ability to recognize objects'. This is a definition-based question.
Your goal is to match this definition with the correct medical term from the options.
Mentally define each option. Dysarthria relates to speech, Alexia to reading, Ataxia to movement coordination, and Agnosia to recognition.
Compare the definition from the stem with your definitions of the options.
The definition 'inability to recognize objects' directly corresponds to the definition of Agnosia.
Select Agnosia as the correct answer because it is the precise term for this specific neurological deficit.

Concept Tested & Keywords

QlUXv9azMbVZiZHAraVlyU

E6 Medicine Harrison 22e Part 1 pp. 248-250, 247-249, 244-246

Practise the full AIIMS Patna NO - 2020

Attempt every question from this paper in a timed mock, then review the full solution for each one.