PubMed · 2447511
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H J Schütz. 1987. [Putamen hematomas].. https://pubmed.ncbi.nlm.nih.gov/2447511/
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Auditory temporal-order judgement was investigated in patients suffering from unilateral focal brain lesions, localized in anterior or posterior regions of the left hemisphere (LH) (resulting in non-fluent or fluent aphasia, respectively), or in predominantly subcortical regions of this hemisphere (without aphasic syndromes) and in anterior or posterior regions of the right hemisphere. The temporal order threshold was measured as the minimum time interval between two clicks presented consecutively and binaurally via headphones (one to each ear) that was necessary for a subject to indicate the temporal order of the two stimuli. Only the patient group with fluent aphasia showed a significantly increased mean temporal-order threshold as compared to the controls. Our results indicate that fine temporal resolution for auditory stimuli is predominantly associated with posterior regions of the LH.
The Correct Information Unit (CIU) analysis for measuring the communicative informativeness and efficiency of connected speech (Nicholas & Brookshire, 1993) was applied to the naturally occurring conversation of a person with moderate aphasia. Results indicated that, in this instance, reliable CIU measures could not be obtained. Intrarater reliability for CIU and %CIU was low, reaching only 72%, and interrater reliability was never greater than 63%. However, reliability of word counts was good. Post hoc analysis of rater disagreements in application of the CIU analysis revealed that the majority (72%) resulted from insufficiencies in the scoring rules that were originally designed to measure single speaker connected discourse. Two descriptive categories of disagreements were identified: interpretations of informativeness and absence of rules. The remaining 28% of disagreements were attributable to human error in the application of scoring rules. Comparison of findings with previous research and implications for future research are discussed.