Neuropsychological assessment Flashcards
what is neuropsychology
the relationship between brain function/ dysfunction and behaviour
what is a neuropsychological assessment?
systematic collection, organisation and interpretation of information about a person and their situation as well as predicting future behaviour
what considerations should be taken into account when testing neuropsychological status
standardisation sample e.g. culture, language and premorbid abilities
what is the underlying concept of psychometrics?
based on statistical analysis and a normal distribution
what are the three conceptual approaches to neuropsychological ax?
assessment
psychometrics
localisation
WAIS-IV
tests full scale IQ
index scores for verbal comprehension, working memory, perceptual reasoning and processing speed
dsicriminates verbal/ non verbal abilities or crystallised/ fluid intelligence
what percentage of people fall within one standard deviation (15 points) of 100 on the WAIS
68%
what percentage of people fall within two standard deviations (30 points) of 100 on the WAIS
96%
what are the core subtests of the verbal comprehension index?
similarities
vocabulary
information
what is the suplemental subtest of the verbal comprehension index?
comprehension
what are the perceptual reading index core substests?
block design
matrix reasoning
visual puzzles
what are the perceptual reasoning index supplemental subtests?
figure weights (16-69)
picture completion
what are the working memory index core subtests?
digit span
arithmetic
what is the working memory index supplemental subtest?
letter-number sequencing (16-69)
what are the processing speed index core subtests?
symbol search
coding
what is the processing speed index supplemental subtest?
cancellation (16-69)
which reading tests can be used to estimate pre morbid IQ?
national adult reading test
weschler test of adult reading
spot the word and spot the word 2
schonell graded word reading test
test of premorbid functioning
co normed against WAIS-IV
what are the issues with estimates of premorbid IQ?
based on reading vocabularly of low frequency irregular words
affected by developmental or acquired language difficulties
english as first language
large error margins
Memory
new learning as affected by working and episodic memory
what are the types of memory that can be assessed?
verbal vs. non verbal
recall vs. recognition
anterograde ve retrograde
prospective
procedural
evidence of material specific difficulties may suggest what?
lateralisation
testing recall vs recognition memory help with what?
identifying encoding vs. retrieval difficulties
which tests can be used to test retrograde memory?
autobiographical memory test
dead or alive test