PMID- 24021389
OWN - NLM
STAT- MEDLINE
DCOM- 20140703
LR  - 20131104
IS  - 1873-3379 (Electronic)
IS  - 0891-4222 (Linking)
VI  - 34
IP  - 11
DP  - 2013 Nov
TI  - The ex-Gaussian distribution of reaction times in adolescents with 
      attention-deficit/hyperactivity disorder.
PG  - 3709-19
LID - S0891-4222(13)00326-0 [pii]
LID - 10.1016/j.ridd.2013.07.025 [doi]
AB  - We investigated the three parameters (mu, sigma, tau) of ex-Gaussian distribution 
      of RT derived from the Conners' continuous performance test (CCPT) and examined 
      the moderating effects of the energetic factors (the inter-stimulus intervals 
      (ISIs) and Blocks) among these three parameters, especially tau, an index 
      describing the positive skew of RT distribution. We assessed 195 adolescents with 
      DSM-IV ADHD, and 90 typically developing (TD) adolescents, aged 10-16. 
      Participants and their parents received psychiatric interviews to confirm the 
      diagnosis of ADHD and other psychiatric disorders. Participants also received 
      intelligence (WISC-III) and CCPT assessments. We found that participants with 
      ADHD had a smaller mu, and larger tau. As the ISI/Block increased, the magnitude 
      of group difference in tau increased. Among the three ex-Gaussian parameters, tau 
      was positively associated with omission errors, and mu was negatively associated 
      with commission errors. The moderating effects of ISIs and Blocks on tau 
      parameters suggested that the ex-Gaussian parameters could offer more information 
      about the attention state in vigilance task, especially in ADHD.
CI  - Copyright (c) 2013 Elsevier Ltd. All rights reserved.
FAU - Gu, Shoou-Lian Hwang
AU  - Gu SL
AD  - Graduate Institute of Behavioral Sciences, College of Medicine, Chang Gung 
      University, Tao-Yuan, Taiwan.
FAU - Gau, Susan Shur-Fen
AU  - Gau SS
FAU - Tzang, Shyh-Weir
AU  - Tzang SW
FAU - Hsu, Wen-Yau
AU  - Hsu WY
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130907
PL  - United States
TA  - Res Dev Disabil
JT  - Research in developmental disabilities
JID - 8709782
SB  - IM
MH  - Adolescent
MH  - Attention/physiology
MH  - Attention Deficit Disorder with Hyperactivity/*physiopathology
MH  - Case-Control Studies
MH  - Child
MH  - Female
MH  - Humans
MH  - Male
MH  - Neuropsychological Tests
MH  - Normal Distribution
MH  - Reaction Time/*physiology
OTO - NOTNLM
OT  - ADHD
OT  - Cognitive-energetic model
OT  - Effort allocation
OT  - Ex-Gaussian distribution
OT  - Reaction time variability
EDAT- 2013/09/12 06:00
MHDA- 2014/07/06 06:00
CRDT- 2013/09/12 06:00
PHST- 2013/05/23 00:00 [received]
PHST- 2013/07/16 00:00 [revised]
PHST- 2013/07/17 00:00 [accepted]
PHST- 2013/09/12 06:00 [entrez]
PHST- 2013/09/12 06:00 [pubmed]
PHST- 2014/07/06 06:00 [medline]
AID - S0891-4222(13)00326-0 [pii]
AID - 10.1016/j.ridd.2013.07.025 [doi]
PST - ppublish
SO  - Res Dev Disabil. 2013 Nov;34(11):3709-19. doi: 10.1016/j.ridd.2013.07.025. Epub 
      2013 Sep 7.