Abstract Details

Title ADHD and Spatial Attention in Children

Topic Child Neurology and Developmental Neurology

Presentation(s) P5 - Poster Session 5 (8:00 AM-9:00 AM)

Poster/Presentation
Number 5-001

Objective To characterize and quantify the spatial bias of children with attention-deficit/hyperactivity disorder (ADHD) into specific components of “Aiming” and “Where” biases.

Background Asymmetric spatial bias in ADHD has been described in the literature, however sparingly, with inconsistent findings, and only in near space. Research in other populations demonstrated that spatial bias can be fractionated into “aiming” (motor-intentional) and “where” (perceptual-attentional) components, measurable when participants bisect lines in a direct manner and then in a “reversed” condition that reverses motor movement directions.

Design/Methods Sixteen children (10 with ADHD/ 6 neurotypical; age range 8-13 years old and average age 10.6 years) completed 64 computerized line bisection trials in near and far space in both direct and reversed conditions. Deviation from center was measured. Motor-intentional and perceptual-attentional bias components were then derived.

Results The ADHD group exhibited a leftward deviation in both the near-direct condition (mean: -5.10 mm, 95% CI: -7.98 to -2.22) and far-direct condition (mean: -2.78 mm, 95% CI: -5.50 to -0.03), while the neurotypical controls did not have deviations which excluded a zero bias in the near-direct condition (near- mean: -2.95 mm, 95% CI: -7.21 to 1.31; far- mean: -0.82 mm, 95% CI: -3.03 to 1.39). “Aiming” and “Where” components did not exclude zero biases in any conditions for either group. The groups were not significantly different for any condition or bias component.

Conclusions This is the first study to quantity near and far spatial bias in children with ADHD and to explore the components of this bias. Our findings suggest that children with ADHD have a consistent leftward near and also far spatial bias. Owing to large confidence intervals, bias components did not exclude a bias of zero. At this point, differences between the groups did not reach statistical significance. Further research with larger sample sizes will help to further clarify the findings.

Authors/Disclosures
PRESENTER	No disclosure on file
Xue Ming, MD (Dept of Neurosciences)	Dr. Ming has nothing to disclose.
A. M. Barrett, MD, FAAN (UMass Memorial)	The institution of Dr. Barrett has received research support from Veterans Health Association. The institution of Dr. Barrett has received research support from National Institutes of Health. The institution of Dr. Barrett has received research support from Mabel H Flory Trust. Dr. Barrett has received personal compensation in the range of $0-$499 for serving as a author, chapter with WebMD. Dr. Barrett has received personal compensation in the range of $10,000-$49,999 for serving as a scientific advisor with Winifred Masterson Burke Foundation.
Jacklyn Johnson, MD (Rutgers NJMS)	Dr. Johnson has nothing to disclose.
Sarah N. Silverstein	No disclosure on file
Jeffrey M. Kornitzer, MD, FAAN (New Jersey Pediatric Neuroscience Institute (NJPNI))	Dr. Kornitzer has nothing to disclose.

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