The Speed of Visual Attention and Motor-Response Decisions in Adult Attention-Deficit/Hyperactivity Disorder
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The Speed of Visual Attention and Motor-Response Decisions in Adult Attention-Deficit/Hyperactivity Disorder. / Cross-Villasana, Fernando; Finke, Kathrin; Hennig-Fast, Kristina; Kilian, Beate; Wiegand, Iris ; Müller, Hermann Joseph; Möller, Hans Jürgen; Töllner, Thomas.
In: Biological Psychiatry, Vol. 78, No. 2, 2015, p. 107-115.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The Speed of Visual Attention and Motor-Response Decisions in Adult Attention-Deficit/Hyperactivity Disorder
AU - Cross-Villasana, Fernando
AU - Finke, Kathrin
AU - Hennig-Fast, Kristina
AU - Kilian, Beate
AU - Wiegand, Iris
AU - Müller, Hermann Joseph
AU - Möller, Hans Jürgen
AU - Töllner, Thomas
PY - 2015
Y1 - 2015
N2 - AbstractBackground: Adults with Attention Deficit/Hyperactivity Disorder (ADHD) exhibit slowed reaction times (RTs) in various attention tasks. The exact origins of this slowing, however, have not been yet established. Potential candidates are early sensory processes mediating the deployment of focal-attention, stimulus-response translation processes deciding upon the appropriate motor-response, and motor processes generating the response.Methods: We combined mental chronometry (RT) measures of adult ADHD (n = 15) and healthy control (n = 15) participants with their lateralized event-related potentials (ERP) during the performance of a visual-search task to differentiate potential sources of slowing at separable levels of processing: the posterior contralateral negativity (PCN) was used to index focalattentional selection times, while the lateralized readiness potentials synchronized to stimulus (sLRP) and response events (rLRP) were used to index the times taken for response selection and production, respectively. To assess the clinical relevance of ERPs, a correlation analysis between neural measures and subjective current and retrospective ADHD symptom ratings was performed.Results: ADHD patients exhibited slower RTs than control participants, which were accompanied by prolonged PCN and sLRP, but not rLRP, latencies. Moreover, the PCN timing was positively correlated with ADHD symptom ratings.Conclusions: The behavioral RT slowing of adult ADHD patients was based on a summation of internal processing delays arising at perceptual and response-selection stages; motor-response production, by contrast, was not impaired. The correlation between PCN times and ADHD
AB - AbstractBackground: Adults with Attention Deficit/Hyperactivity Disorder (ADHD) exhibit slowed reaction times (RTs) in various attention tasks. The exact origins of this slowing, however, have not been yet established. Potential candidates are early sensory processes mediating the deployment of focal-attention, stimulus-response translation processes deciding upon the appropriate motor-response, and motor processes generating the response.Methods: We combined mental chronometry (RT) measures of adult ADHD (n = 15) and healthy control (n = 15) participants with their lateralized event-related potentials (ERP) during the performance of a visual-search task to differentiate potential sources of slowing at separable levels of processing: the posterior contralateral negativity (PCN) was used to index focalattentional selection times, while the lateralized readiness potentials synchronized to stimulus (sLRP) and response events (rLRP) were used to index the times taken for response selection and production, respectively. To assess the clinical relevance of ERPs, a correlation analysis between neural measures and subjective current and retrospective ADHD symptom ratings was performed.Results: ADHD patients exhibited slower RTs than control participants, which were accompanied by prolonged PCN and sLRP, but not rLRP, latencies. Moreover, the PCN timing was positively correlated with ADHD symptom ratings.Conclusions: The behavioral RT slowing of adult ADHD patients was based on a summation of internal processing delays arising at perceptual and response-selection stages; motor-response production, by contrast, was not impaired. The correlation between PCN times and ADHD
KW - Faculty of Social Sciences
KW - ADHD
KW - Decision-making
KW - Electroencephalography
KW - Neuro-cognitive endophenotypes
KW - Psychophysics
KW - Stimulus-response translation
U2 - 10.1016/j.biopsych.2015.01.016
DO - 10.1016/j.biopsych.2015.01.016
M3 - Journal article
C2 - 25773661
VL - 78
SP - 107
EP - 115
JO - Biological Psychiatry
JF - Biological Psychiatry
SN - 0006-3223
IS - 2
ER -
ID: 131244735