Verbal learning subtypes in traumatic brain injury: A replication

Deshpande, Sonali A.; Millis, Scott R.; Reeder, Kenneth; Fuerst, Darren R.; Ricker, Joseph H.

doi:10.1080/01688639608408306

Cited by 34 publications

(29 citation statements)

References 12 publications

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“…These findings confirm the sensitivity of the CVLT to the general severity of TBI. The finding of two clusters that are clearly distinguished by levels of performance is also consistent with the findings by Millis and colleagues (Millis & Ricker, 1994;Desphande et al, 1996). The current findings are also consistent with those of another recent study in which a general learning factor, related to overall level of performance, most clearly discriminated individuals with moderate and severe TBI from normal controls (Gardner & Vrbancic, 1998).…”

Section: Discussionsupporting

confidence: 94%

“…For this purpose, we selected the technique of cluster analysis, which attempts to group participants in such a way that similarity between individuals within subgroups is maximized while at the same time similarity between individuals from different subgroups is minimized. Millis and his colleagues (Deshpande, Millis, Reeder, Fuerst, & Ricker, 1996;Millis & Ricker, 1994) have previously described the results of several cluster analyses of selected CVLT variables in patients with TBI. Although they found some reliable subtypes, interpretation of their findings is hampered by the fact that cluster variables were selected on the basis of the previously reported results of principal component studies with interdependent variables and orthogonal rotation of factors.…”

mentioning

confidence: 97%

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Performance on the California Verbal Learning Test After Traumatic Brain Injury

Wiegner¹,

Donders²

1999

Journal of Clinical and Experimental Neuropsychology

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The California Verbal Learning Test (CVLT; Delis, Kramer, Kaplan, & Ober, 1987) data of 150 patients with traumatic brain injury (TBI) were evaluated to determine the latent underlying constructs as well as the possibility of performance subtypes with criterion validity. Confirmatory factor analysis of eight competing latent variable models suggested that a four-factor model (composed of Attention Span, Learning Efficiency, Delayed Recall, and Inaccurate Recall) fit the data relatively well. Two-stage cluster analysis of marker variables of each of these four factors suggested the presence of four reliable subtypes. Level of performance differences between these clusters were related to injury severity parameters. It is concluded that the CVLT is a sensitive and mulitfactorial measure of learning and memory after TBI. Specific recommendations for interpretation of clinically obtained CVLT profiles are provided.

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Section: Discussionsupporting

confidence: 94%

mentioning

confidence: 97%

Performance on the California Verbal Learning Test After Traumatic Brain Injury

Wiegner¹,

Donders²

1999

Journal of Clinical and Experimental Neuropsychology

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“…Other studies including patients with mild traumatic brain injuries 5,9,12,13) showed mixed results, but most studies including those on patients with moderate to severe traumatic brain injuries 4,7,8,11,19,21,35,41,[45][46][47][48][49] showed impaired memory functions. These results show that the relationship between the severity of the injury and memory performance of patients with TBI is moderate 25,26) .…”

Section: Discussionmentioning

confidence: 99%

Memory Dysfunctions after Mild and Moderate Traumatic Brain Injury : Comparison between Patients with and without Frontal Lobe Injury

Kim

Seo

et al. 2009

J Korean Neurosurg Soc

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Objective : The purpose of this study was to assess memory dysfunction in patients with mild and moderate traumatic brain injury (TBI) with and without frontal lobe injury (FLI). Methods : The subjects were 110 TBI patients, who had recovered from the acute clinical phase, and comprised 20 (18.2%) mild TBI (MTBI) patients with FLI, 16 (14.5%) MTBI patients without FLI, 51 (46.4%) moderate TBI (MOTBI) patients with FLI and 23 (20.9%) MTBI patients without FLI. All patients were administrated the Korean version of the Memory Assessment Scale (K-MAS). Results : Almost all the Summary Scale scores on the K-MAS failed to show any differences between TBI patients with and without FLI, but differences did emerge by types at severities. TBI patients with FLI showed higher Global Memory ability than TBI patients without FLI if their TBI was only mild, but when their TBI was more severe, this finding was reversed, and TBI patients with FLI showed lower Verbal and Global Memory abilities than TBI patients without FLI. Conclusion : Different kinds of assessment tools are needed for the measurement of memory abilities in TBI patients with FLI, and that the selection of the appropriate tool depends on the severity of the TBI.

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“…It is possible that individuals with HIV-1 infection exhibit distinct patterns of verbal learning and memory, as found in the traumatic brain injury literature (Curtiss et al, 2001;Deshpande et al, 1996;Millis & Ricker, 1994;Wiegner & Donders, 1999).…”

Section: Introductionmentioning

confidence: 99%

Theoretically derived CVLT subtypes in HIV-1 infection: Internal and external validation

Murji

Rourke

Donders

et al. 2003

J Int Neuropsychol Soc

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The present study sought to delineate empirically derived memory subtypes using the California Verbal Learning Test (CVLT; Delis et al., 1987) in a sample of adults with HIV-1 infection (N 5 154). Confirmatory factor analysis was used to evaluate eight models of the CVLT structure suggested by Wiegner and Donders (1999). A four-factor model, consisting of Attention Span, Learning Efficiency, Delayed Recall, and Inaccurate Recall appeared to be the best fitting model. Variables with the highest factor loadings from the model were entered in a two-stage cluster analysis. Four reliable CVLT clusters or subtypes were identified: Normal, Atypical, Subsyndromal, and Frontal-striatal. Internal and external validation of subtypes demonstrated that clusters were stable and clinically interpretable. Subtypes were meaningfully related to neuropsychological functioning, and to some extent, depressive symptomatology. Subtypes did not differ significantly with respect to subjective neurocognitive complaints and markers of HIV-1 disease. The present findings highlight the heterogeneity of memory profiles in HIV-1 infection and support a frontal-striatal conceptualization of verbal memory performance. The identification of robust HIV-1 memory subtypes may have important implications for the clinical management of adults infected with HIV-1 infection. (JINS, 2003, 9, 1-16.)

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Verbal learning subtypes in traumatic brain injury: A replication

Cited by 34 publications

References 12 publications

Performance on the California Verbal Learning Test After Traumatic Brain Injury

Performance on the California Verbal Learning Test After Traumatic Brain Injury

Memory Dysfunctions after Mild and Moderate Traumatic Brain Injury : Comparison between Patients with and without Frontal Lobe Injury

Theoretically derived CVLT subtypes in HIV-1 infection: Internal and external validation

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