Molar Variability and the Mentally Retarded

Smith, Stuart A.; Siegel, Paul S.

doi:10.1016/s0074-7750(08)60075-0

Cited by 1 publication

(2 citation statements)

References 94 publications

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“…Researchers investigating the speed accuracy trade-off in adults with DS showed that adults with DS continue to make errors without altering their speed (i.e., slowing down to be more accurate). Thus, adults with DS appear less efficient at adjusting their speed on the basis of feedback (Smith & Siegel, 1986) and in processing information (Welsh & Elliott, 2001). This problem is exaggerated in the performance of continuous tasks in which adjustments to information must be made continually and quickly.…”

Section: Group Differencesmentioning

confidence: 99%

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Performance of Bimanual Circles and Lines by Adults with Down Syndrome

Ringenbach¹,

Ericsson

Kao

2003

Adapted Physical Activity Quarterly

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The aim of this study was to investigate differences among information that varied in interference during drawing tasks in adults with DS. Adults with DS and two comparison groups (Mental Age = MA; Chronological Age = CA) drew bimanual circles and lines coordinated with 3 decreasing rate metronomes: visual information in front of the participant (visual interference), visual information under the hands (reduced visual interference), and auditory information (no visual interference). There were no group differences between metronome conditions, although adults with DS maintained a constant rate despite changing metronome rates. For measures of between hand coordination, the MA group was more variable than adults with DS and the CA group and circles were more variable than lines. These results suggest that adults with DS have difficulty following timing information, regardless of type, for repetitive tasks.

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Section: Group Differencesmentioning

confidence: 99%

“…Along with stereotypical responses, adults with DS have been shown to be distractible (Smith, & Siegel, 1986). Therefore, they may be less likely to notice a change in the stimulus (e.g., metronome).…”

Section: Group Differencesmentioning

confidence: 99%