Patterns of verbal learning and memory in traumatic brain injury
CVLT and WMS–R Digit Span variables were used to calculate indexes of seven specific short- and long-term memory processes: working memory span and central executive functions, and long-term memory encoding, consolidation, retention, retrieval, control abilities. Scores on these indexes were then cl...
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Veröffentlicht in: | Journal of the International Neuropsychological Society 2001-07, Vol.7 (5), p.574-585 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | CVLT and WMS–R Digit Span variables were used to
calculate indexes of seven specific short- and long-term
memory processes: working memory span and central executive
functions, and long-term memory encoding, consolidation,
retention, retrieval, control abilities. Scores on these
indexes were then cluster-analyzed to determine whether
subtypes of memory performance exist that correspond to
deficits in these theoretical memory constructs. Parallel
analyses were conducted with two large samples (N
= 150 and N = 151) of individuals who had sustained
a traumatic brain injury (TBI). Findings showed that TBI
results in subgroups of memory disorders with specific
deficits in consolidation, retention, and retrieval processes.
Control problems (keeping track of list versus
non-list items) only appeared in conjunction with retrieval
deficits. Working memory span and central executive functioning
(i.e., the ability to manipulate information in working
memory) do not appear to be deficits characteristic of
TBI as no such clusters emerged in the analyses. By using
specific indexes of memory processes, and in contrast to
previous studies, patterns of memory dysfunction were found
that correspond to deficits in theoretically meaningful
memory constructs. (JINS, 2001, 7, 574–585.) |
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ISSN: | 1355-6177 1469-7661 |
DOI: | 10.1017/S1355617701755051 |