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Medial Temporal Lobe Volume Predicts Elders’ Everyday Memory, Heather R. Bailey, Jeffrey M. Zacks, David Z. Hambrick, Rose T. Zacks, Denise Head, Christopher A. Kurby, Jesse Q. Sargent
Medial Temporal Lobe Volume Predicts Elders’ Everyday Memory, Heather R. Bailey, Jeffrey M. Zacks, David Z. Hambrick, Rose T. Zacks, Denise Head, Christopher A. Kurby, Jesse Q. Sargent
Peer Reviewed Articles
Deficits in memory for everyday activities are common complaints among healthy and demented older adults. The medial temporal lobes and dorsolateral prefrontal cortex are both affected by aging and early-stage Alzheimer’s disease, and are known to influence performance on laboratory memory tasks. We investigated whether the volume of these structures predicts everyday memory. Cognitively healthy older adults and older adults with mild Alzheimer’s-type dementia watched movies of everyday activities and completed memory tests on the activities. Structural MRI was used to measure brain volume. Medial temporal but not prefrontal volume strongly predicted subsequent memory. Everyday memory depends on segmenting activity …
Elementary Children’S Tonal Awareness As Related To Perception Of Tonal Dissonance, Charles E. Norris
Elementary Children’S Tonal Awareness As Related To Perception Of Tonal Dissonance, Charles E. Norris
Peer Reviewed Articles
This study investigated children’s tonal awareness by measuring their abilities to detect dissonance in major tonality using the author-created Tonal Dissonance Detection Test. A two-way analysis of variance of 312 elementary school subjects’ Tonal Dissonance Detection Test scores revealed that first- and second-graders’ dissonance detection abilities were significantly weaker than those of their third- to sixth-grade counterparts. Subsequent analysis revealed neither a significant gender effect nor interaction between grade level and gender. Findings are consistent with related study of the perception of tonality and tonal expectancies in children and adults. Given the homogeneity of the sample, the longevity of the …