Visual Information Processing Flashcards
What are the three major subsections of VIP?
visual spatial, visual analysis, visual-motor integration
What are two additional areas of VIP?
visual-auditory integration AND visual attention and processing speed
What is the main purpose of the visual system?
derivation of meaning and the direction of action
What is information collecting?
getting info from the environment to the visual cortex and higher processing centers (input)
What visual skills fall under information collecting?
acuity, oculomotor, accommodation, vergence
What is information processing?
taking the input info and making decisions about it (output)
What visual skills fall under information processing?
perception, cognition, conceptualization
VIP=
higher level visual skills/visual cognitive skills
What does VIP entail?
extracting and organizing visual info from environment, integrating visual info with other senses, incorporating higher cognitive function
What is the use of vision to interact with and to organize the environment?
visual spatial skills
What is necessary for good motor coordination, balance, and directional sense?
awareness of body concepts (visual spatial skills)
What are three key areas of visual spatial skills?
bilateral integration, laterality, directionality
What is bilateral integration?
awareness and use of both sides of the body
What is laterality?
awareness of right and left on self
What is directionality?
awareness of right and left projected into space
What are signs and symptoms of poor visual spatial skills?
poor athletic performance, difficulty with/lack of rhythm, poor coordination/balance, clumsy, poor knowledge of left/right, letter/number reversals
What are visual spatial skill tests?
angels in the snow, Piaget L/R, Gardner reversal frequency, Jordan L/R
What is angels in the snow?
assess movement of body parts one at a time or together, ipsilateral, contralateral, looks for motor overflow (age 3-8)
What is Piaget R/L awareness test?
assess ability to understand R/L on self, others, objects in space, 5 sections to test (age 5-11)
What is Gardner Reversal frequency test?
assess letter reversals, 3 subtests: execution, recognition, matching
What is execution in the Gardner reversal frequency test?
patient writes specific numbers and lower-case letters (age 5-15)
What is recognition in the Gardner reversal frequency test?
patient evaluates whether numbers/letters are correct or backwards (age 5-15)
What is matching in the Gardner reversal frequency test?
patient chooses which number/letter matches the one shown (age 5-8)
What is the Jordan L-R reversal test?
tests for letter, number, and word reversals, subtests, 2 levels
What do the Jordan L-R reversal subtests test for?
recognition of reversals of single letters/numbers, reversals of letter placement within words, and reversals of letters in words/entire words within sentences
What is level 1 vs 2 for Jordan L-R reversal?
level 1 individual letter/number reversals (age 5-8) and level 2 reversals within words/sentences (age 9-12)
What is spatial relations?
the ability to perceive differences in orientation of the features of a form or symbol
What is visual analysis skills?
the ability to analyze and to discriminate visually presented information
What are the subcategories of visual analysis skills?
discrimination, figure-ground, closure, memory/visualization, form constancy, visual attention/processing speed
Which subcategory of visual analysis skills is not in the TVPS?
visual attention/processing speed