We deemed four domains informative in differentiating ADHD subtypes from controls. Of these, memory was the only domain that held promise in distinguishing ADHD-Inattentive and ADHD-Combined. Limitations of the available literature are highlighted and recommendations for future research are provided.

A revised version of the Atonomic Perception Questionnaire (Mandler, Mandler, & Uviller, 1958) was administered to 359 psychology students and the highest and lowest scoring (12.5%) males and females (N = 88) of this group were selected to participate in two experiments. In Exp. 1, skin conductance, muscle tension, respiratory rate, and heart rate were recorded prior to and during presentation of neutral and stressful visual stimuli. In Exp. 2, the same indices were recorded and the same procedure was used. Participants were instructed to rate physiological reactivity to the stimuli. Finally, a medical history questionnaire was mailed to each participant 1 wk. after completing the experiments. The data indicate that this version of the Autonomic Perception Questionnaire was predictive only of responsivity of skin conductance to stressful stimuli.

A revised version of the Autonomic Perception Questionnaire (Mandler, Mandler, & Uviller, 1958) was administered to 359 psychology students and the highest and lowest scoring (12.5%) males and females ( N = 88) of this group were selected to participate in two experiments. In Exp. 1, skin conductance, muscle tension, respiratory rate, and heart rate were recorded prior to and during presentation of neutral and stressful visual stimuli. In Exp. 2, the same indices were recorded and the same procedure was used. Participants were instructed to rate physiological reactivity to the stimuli. Finally, a medical history questionnaire was mailed to each participant 1 wk. after completing the experiments. The data indicate that this version of the Autonomic Perception Questionnaire was predictive only of responsivity of skin conductance to stressful stimuli.

Objective Working memory performance among adults with Attention-Deficit/Hyperactivity Disorder (ADHD) demonstrates variable results across literature. This investigation evaluated performance on a visuospatial working memory task relative to scores on measures of ADHD subtype and severity. Method A community sample aged 18 to 77 (n = 31; n men = 15) completed neuropsychological testing and measures of ADHD. The sample was predominantly White (64%; n = 20) and highly educated (Myears = 15.6). Participants were eligible if they were 18 or older, regardless of ADHD symptoms/diagnosis, and excluded if they had neuromedical/neuropsychiatric disorders. Spatial Addition (SA) from the Wechsler Memory Scale (WMS-IV) assessed working memory; the Adult ADHD Clinical Diagnostic Scale (ACDS) and Adult ADHD Investigator Symptom Rating Scale (AISRS) assessed ADHD subtype and burden. Results AISRS scores did not explain any variance in SA scores, R2 = 00, p = .970 (β = -.020, p = .970). A one-way between subjects ANOVA demonstrated no significant differences on SA scores between groupings based on ACDS: ADHD (n = 9, M = 13, SD = 4.12), and non-ADHD (n = 20, M = 13.95, SD = 5.27), (F(3,25) = .592, p = .626); ADHD (Inattentive (n = 2, M = 14.4, SD = .707); Hyperactive (n = 1, M = 18.00); Combined (n = 6, M = 11.7, SD = 4.8)). Adjustment for age and education did not change these findings. Conclusions Results failed to indicate any association between visuospatial working memory scores and ADHD symptoms but a larger, diversified sample is necessary to corroborate this null finding.

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