Perceptual Impairment Terminology Flashcards
unilateral neglect
(spatial neglect, hemi-inattention, hemineglect, unilateral visual inattention)
inability to register/integrate stimuli and perceptions from one side of the body, environment, and hemispace
R parietal lobe –> L side affected
anosognosia
lack of awareness/denial of paretic extremity as belonging to the person
lack of insight concerning, denial of paralysis/disability
somatognosia
(autopagnosia, body agnosia)
lack of awareness of body structure and relationship of body parts to oneself or to others
lesion in dominant parietal lobe
Right-left discrimination
inability to identify right and left sides of one’s body or that of the examiner
fingeragnosia
inability to identify the fingers of one’s own hands o hands of examiner
figure-ground discrimination
inability to visually distinguish a figure from the background in which it is embedded
form discrimination
inability to perceive/attend to subtle differences in form and shape
spatial relations
inability to perceive the relationship of one object in space to another object or to oneself
compound problems in constructional tasks and dressing
position in space
inability to perceive and to interpret spatial concepts
(up, down, under, oever, in/out, in front of/behind)
topographical disorientation
difficulty in understanding and remembering the relationship of one location to another
depth and distance perception
experiences inaccurate judgement of direction, distance, and depth
vertical disorientation
distorted perception of what is vertical
visual agnosia
inability to recognize familiar objects, despite normal function of eyes and optic tracts (most common)
Simultanagnosia (Ballint’s syndrome)
inability to perceieve a visual stimulus as a whole (perceives as one part at a time)
prosopagnosia
inability to recognize familiar faces
color agnosia
inability to recognize colors
auditory agnosia
inability to recognize nonspeech sounds/discriminate between them
tactile agnosia (astereognosis)
inability to recognize forms by handling them
(tactile, proprioceptive, and thermal sensaitons intact)
ideaomotor apraxia
breakdwon between concepts and performance
disconnection between the idea of a movement and its motor execution
ideational apraxia
failure in the conceptualization of tasks –> inability to perform a purposeful motor act
