Belgüzar Nilay Türkan1, Sonia Amado2, Eyüp Sabri Ercan3, Ipek Perçinel4. 1. Ege University, Department of Psychology, 35400 Izmir, Turkey. Electronic address: turkan.nilay@gmail.com. 2. Ege University, Department of Psychology, 35400 Izmir, Turkey. 3. Ege University, Department of Child and Adolescent Psychiatry, 35100 Izmir, Turkey. 4. Osmaniye Child and Adolescent Psychiatry Clinic, Osmaniye, Turkey.
Abstract
BACKGROUND: ADHD participants showed poorer change detection performance compared to participants without any diagnosis. The difficulty to detect changes in ADHD children might be due to their voluntary eye movement control and attentional deficits. AIMS: To evaluate change detection performance and visual search patterns of children with ADHD and compare their performances with typically developing (TD) children. METHODS AND PROCEDURES: 48 children (nADHD=24, nTD=24) participated (Mage=8 years, 10 months). Flicker paradigm was used to evaluate change detection performance, while eye movements were recorded during the experiment. RESULTS: Change detection accuracies of TD children were higher compared to ADHD children. TD groups made longer fixations on the changed area and their first fixation duration was also longer than ADHD children which showed that TD children had longer fixation maintenance than ADHD children. CONCLUSIONS: The change detection performance, which is associated with visual attention and memory, was found to be worse in ADHD children than TD children and these children made shorter fixations on the changed area than TD children. The findings were found to be in line with the difficulty to sustain attention in ADHD children that is necessary for encoding the scene properties and goal-oriented behavior.
BACKGROUND:ADHDparticipants showed poorer change detection performance compared to participants without any diagnosis. The difficulty to detect changes in ADHDchildren might be due to their voluntary eye movement control and attentional deficits. AIMS: To evaluate change detection performance and visual search patterns of children with ADHD and compare their performances with typically developing (TD) children. METHODS AND PROCEDURES: 48 children (nADHD=24, nTD=24) participated (Mage=8 years, 10 months). Flicker paradigm was used to evaluate change detection performance, while eye movements were recorded during the experiment. RESULTS: Change detection accuracies of TD children were higher compared to ADHDchildren. TD groups made longer fixations on the changed area and their first fixation duration was also longer than ADHDchildren which showed that TD children had longer fixation maintenance than ADHDchildren. CONCLUSIONS: The change detection performance, which is associated with visual attention and memory, was found to be worse in ADHDchildren than TD children and these children made shorter fixations on the changed area than TD children. The findings were found to be in line with the difficulty to sustain attention in ADHDchildren that is necessary for encoding the scene properties and goal-oriented behavior.
Authors: Nicholas T Bott; Alex Lange; Dorene Rentz; Elizabeth Buffalo; Paul Clopton; Stuart Zola Journal: Front Neurosci Date: 2017-06-28 Impact factor: 4.677