TY  - JOUR
A1  - Grimm, Oliver
A1  - Weber, Heike
A1  - Kittel-Schneider, Sarah
A1  - Kranz, Thorsten M.
A1  - Jacob, Christian P.
A1  - Lesch, Klaus-Peter
A1  - Reif, Andreas
T1  - Impulsivity and Venturesomeness in an Adult ADHD Sample: Relation to Personality, Comorbidity, and Polygenic Risk
JF  - Frontiers in Psychiatry
N2  - While impulsivity is a basic feature of attention-deficit/hyperactivity disorder (ADHD), no study explored the effect of different components of the Impulsiveness (Imp) and Venturesomeness (Vent) scale (IV7) on psychiatric comorbidities and an ADHD polygenic risk score (PRS). We used the IV7 self-report scale in an adult ADHD sample of 903 patients, 70% suffering from additional comorbid disorders, and in a subsample of 435 genotyped patients. Venturesomeness, unlike immediate Impulsivity, is not specific to ADHD. We consequently analyzed the influence of Imp and Vent also in the context of a PRS on psychiatric comorbidities of ADHD. Vent shows a distinctly different distribution of comorbidities, e.g., less anxiety and depression. PRS showed no effect on different ADHD comorbidities, but correlated with childhood hyperactivity. In a complementary analysis using principal component analysis with Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition ADHD criteria, revised NEO Personality Inventory, Imp, Vent, and PRS, we identified three ADHD subtypes. These are an impulsive–neurotic type, an adventurous–hyperactive type with a stronger genetic component, and an anxious–inattentive type. Our study thus suggests the importance of adventurousness and the differential consideration of impulsivity in ADHD. The genetic risk is distributed differently between these subtypes, which underlines the importance of clinically motivated subtyping. Impulsivity subtyping might give insights into the organization of comorbid disorders in ADHD and different genetic background.
KW  - impulsivity
KW  - ADHD
KW  - polygenic risk score
KW  - venturesomeness
KW  - substance abuse disorder
KW  - attention
KW  - hyperactivity
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-219751
SN  - 1664-0640
VL  - 11
ER  - 
TY  - JOUR
A1  - Baader, Anna
A1  - Kiani, Behnaz
A1  - Brunkhorst-Kanaan, Nathalie
A1  - Kittel-Schneider, Sarah
A1  - Reif, Andreas
A1  - Grimm, Oliver
T1  - A within-sample comparison of two innovative neuropsychological tests for assessing ADHD
JF  - Brain Sciences
N2  - New innovative neuropsychological tests in attention deficit hyperactivity disorder ADHD have been proposed as objective measures for diagnosis and therapy. The current study aims to investigate two different commercial continuous performance tests (CPT) in a head-to-head comparison regarding their comparability and their link with clinical parameters. The CPTs were evaluated in a clinical sample of 29 adult patients presenting in an ADHD outpatient clinic. Correlational analyses were performed between neuropsychological data, clinical rating scales, and a personality-based measure. Though inattention was found to positively correlate between the two tests (r = 0.49, p = 0.01), no association with clinical measures and inattention was found for both tests. While hyperactivity did not correlate between both tests, current ADHD symptoms were positively associated with Nesplora Aquarium's motor activity (r = 0.52 to 0.61, p < 0.05) and the Qb-Test's hyperactivity (r = 0.52 to 0.71, p < 0.05). Conclusively, the overall comparability of the tests was limited and correlation with clinical parameters was low. While our study shows some interesting correlation between clinical symptoms and sub-scales of these tests, usage in clinical practice is not recommended.
KW  - ADHD
KW  - neuropsychology
KW  - continuous performance test
KW  - Qb-Test
KW  - Nesplora Aquarium
KW  - attention
KW  - hyperactivity
KW  - GHQ-28
KW  - UPPS
KW  - impulsivity
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-220089
SN  - 2076-3425
VL  - 11
IS  - 1
ER  -