Effects of midline crossing on response processing of adults with mental retardation

Surburg, Paul R.; Johnston, J. H.; Eason, Bobby L.

doi:10.1007/bf02578419

Cited by 6 publications

(11 citation statements)

References 19 publications

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“…Based on these findings, the technique developed by Eason and Surburg (1993) is applicable for lower-extrem ity assessment of cross-lateral integration. These results are in agreem ent with other research utilising this technique with the uppe r-extrem ity movem ents (Eason & Surbur g, 1993;Surburg et al, 1994). A developm ental hypoth esis may be applied to these data to explain the RT findings of this study.…”

Section: Discussionsupporting

confidence: 91%

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Midline-crossing Inhibition: An Indicator of Developmental Delay

Surburg¹

1999

Laterality

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In normal development midline crossing integration is usually attained by eight or nine years of age. The inability to attain this developmental milestone is called midline crossing inhibition (MCI). A new method to detect MCI was used to examine the presence of MCI in a group of subjects with mental retardation. Seventeen subjects with mental retardation and an equal number of non-disabled peers participated in the study. Choice response time measurements consisting of reaction time and movement time were the dependent variables. These variables were recorded when subjects executed ipsilateral, midline and contralateral movements with each leg. Analysis of data revealed for both dependent variables significant differences between the two groups of subjects. Only the group with mental retardation exhibited contralateral times that were significantly slower than ipsilateral times. Midline crossing inhibition was evident with these developmentally delayed subjects. This new method shows promise for assessing developmental and neurological anomalies.

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Section: Discussionsupporting

confidence: 91%

“…In like m anner, adults with m oderate mental retardation had not attained this milestone and MCI was in evidence. (Surburg, Johnston, & Eason, 1994).…”

Section: Introductionmentioning

confidence: 99%

Midline-crossing Inhibition: An Indicator of Developmental Delay

Surburg¹

1999

Laterality

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“…The fact that MCI is present in individuals with mild and moderate levels of mental retardation may be explained by their lack of attainment of certain developmental milestones or stages (14). Bashore and associates argue "that the slowing induced by older age is not generalized, but rather is both task-dependent and process-specific" (Ref.…”

mentioning

confidence: 99%

“…The developmental continuum model of MCI is illustrated by studies that have shown that the following populations exhibit MCI: very young children (16,(18)(19)(20), young children with learning disabilities (21), and adults with moderate levels of mental retardation (14).…”

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confidence: 99%

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Age Differences and Changes in Midline-Crossing Inhibition in the Lower Extremities

Lombardi

Surburg

Eklund

et al. 2000

The Journals of Gerontology Series A: Biological Sciences and M

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Midline Crossing Behavior in Children with Learning Disabilities

Woodard

Surburg

1999

Adapted Physical Activity Quarterly

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The purpose was to compare children with and without learning disabilities (LD), ages 6–8 years, on midline crossing inhibition (MCI). Participants were 44 children (24 boys and 20 girls) in two groups (LD and non-LD), matched on age and gender. MCI was operationally defined as significantly slower contralateral movement when choice reaction time (CRT) and movement time (MT) performance were examined for ipsilateral, midline, and contralateral tasks with both upper and lower extremities. Participants completed 12 days of tests (30 trials each day) using a protocol developed by Eason and Surburg (1993). A 2 (Group) × 2 (Extremity) × 3 (Direction) repeated measures MANOVA revealed significant difference for each dependent variable. Children with LD displayed MCI, whereas children without LD did not.

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Effects of midline crossing on response processing of adults with mental retardation

Cited by 6 publications

References 19 publications

Midline-crossing Inhibition: An Indicator of Developmental Delay

Midline-crossing Inhibition: An Indicator of Developmental Delay

Age Differences and Changes in Midline-Crossing Inhibition in the Lower Extremities

Midline Crossing Behavior in Children with Learning Disabilities

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