Cognition and Perceptual Disorders

Original Editor - Nupur Shah

Top Contributors - Nupur Smit Shah and Kim Jackson  

Introduction

Cognition is the process of acquiring knowledge. It includes, reasoning, memory, awareness, judgement and intuition. Some authors include executive function under cognition too, such as problem solving, planning capacity, recognition of errors and abstract thinking. Many a times executive function is classified as higher level cognitive functions or metacongnitive functions.

Perception is the integration of sensations into information that is meaningful in terms of psycology. It is the ability to choose the stimuli that need attention and action, to integrate them with eachother and to interpret them.

Perception and sensation are not the same and should not be confused with eachother. Sensation is defined as the awareness of stimuli through eyes, ears, nose etc, internal receptions or the peripheral cutaneous system. And perception is far more complex than the individual sensation.

Perception disorders

Body image impairments:

Unilateral neglect

Anosognosia

Somatoagnosia

Right and left discrimitation

Finger agnosia

Spatial Relation impairements

Figure ground discrimitation

Form discrimitation

Spatial Relation

Position in space

Depth and distance perception

Topographical disorientation

Vertical disorientation

Agnosia

Tactile agnosia

Auditory agnosia

Visual object agnosia

Apraxia

Ideomotor apraxia

Ideational apraxia

Cognitive disorders

Attention deficits

Selective attention

Sustained attention

Divided attention

Alternating attention

Memory defictis

Short term or long term memory loss

Immediate recall

Resources

• bulleted list
• x

or

1. numbered list
2. x