Role of Perception Flashcards
Perception?
Brain recognizes & interprets sensory information received by environment
Makes it meaningful
Impact of Perception on Performance?
eg. a coin in a pocket
Sensation tells you its round & flat
Perception tells you it’s a loonie
Perception - Size Recognition?
Helps with depth and special relations
Perception - Shape Recognition?
Helps with object/pattern recognition and stereognosis.
Perception - Color Recognition?
Helps distinguish foreground from background (figure ground)
Stereognosis?
Ability to determine what an object is through touch alone
Astereognosis = this ability is absent
Topographical Orientation?
Following a familiar route to a destination
Relies on landmark recognition
- if deficit feels like in wooded forest all the time (no land marking)
Unilateral Neglect?
A change in attention that presents as:
- Reduced visual search/scanning - no eye move’t or head turning
- Reduced awareness of sensory input from one side of the body
‘Left Sided Neglect’ vs ‘Left Sided Inattention’?
Neglect = dead (more severe) Inattention = its not there
Personal Neglect (Anosognosia)?
Lack or awareness
Pushing Syndrome?
Physically pushing to get on the affected side
No motor or sensory, so when in mid-line they think they are way over & keep doing to try to get some feedback
Evaluation for Personal Neglect?
Postural control, Motor control, Sensation
Fluff Test:
- removing stickers on self
Confrontation test:
- stimulation on affected side (sensory, touch etc.)
- we stand behind them & poke them to see if feel it (extinction)
Body Scheme Disorder?
When you’ve got a wonky understanding of body parts
- They can tell you where body part is but cant point to it
- They don’t know whats wrong with it or how to fix it
Dressing, Transfers, Wheelchair propelling need work
Spatial Neglect?
Anything within arms reach (immediate environment)
Spatial = is only addressing things on one side of field
We use Table Top Activities to look for the severity of the problem
Evaluation for Spatial Neglect?
Table top tasks:
- Clock drawing = for cognitive & perceptive
- House drawing = for object centered neglect