TY - JOUR
T1 - Strategies for stimulus selective stopping in the elderly
AU - Hsieh, Shulan
AU - Lin, Yu Chi
N1 - Funding Information:
We would like to thank the Ministry of Science Technology (MOST) of the Republic of China, Taiwan for financially supporting this research (Contract No. 101-2410-H-006-046-MY3 and No. 104-2410-H-006-021-MY2), and we thank Frederick Verbruggen and Patrick G. Bissett for their insightful feedback. In addition, this research was, in part, supported by the Ministry of Education, Taiwan, ROC. The Aim for the Top University Project to the National Cheng Kung University (NCKU). We also wish to thank American Manuscript Editors (AmericanManuscriptEditors.com) for English proofreading. The data reported in this study will be available upon request.
Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - This study consisted of two primary aims: (1) to determine if different age groups exhibited different strategies (based on their behavioral reaction time [RT] patterns) while performing a stop-signal task and (2) whether there were age-related differences in reactive and/or proactive control processes. Twenty-four younger adults (20–30 years) and 24 older adults (61–76 years) participated in this study. Participants performed a stop-signal task, which included a choice RT block, global stop-signal block, and stimulus-selective stop-signal block. Participants’ strategies were classified using the Bayes factor to support or reject the null hypotheses at the individual level based on paired comparisons among the mean no-signal, signal-respond, and ignore RTs. We found that older adults used a similar pattern of strategies as younger adults in performing a stimulus-selective stop-signal task; most of them utilized either the Stop then Discriminate strategy or Discriminate then Stop strategy with dependency between go and stop processing. In addition, while older adults exhibited an impaired reactive control deficiency reflected on their increased stop-signal RTs in the stimulus-selective stop-signal task, they did not show an impaired proactive control process because their go trials’ RT differences between the choice RT and stop-signal blocks did not differ significantly from those of young adults.
AB - This study consisted of two primary aims: (1) to determine if different age groups exhibited different strategies (based on their behavioral reaction time [RT] patterns) while performing a stop-signal task and (2) whether there were age-related differences in reactive and/or proactive control processes. Twenty-four younger adults (20–30 years) and 24 older adults (61–76 years) participated in this study. Participants performed a stop-signal task, which included a choice RT block, global stop-signal block, and stimulus-selective stop-signal block. Participants’ strategies were classified using the Bayes factor to support or reject the null hypotheses at the individual level based on paired comparisons among the mean no-signal, signal-respond, and ignore RTs. We found that older adults used a similar pattern of strategies as younger adults in performing a stimulus-selective stop-signal task; most of them utilized either the Stop then Discriminate strategy or Discriminate then Stop strategy with dependency between go and stop processing. In addition, while older adults exhibited an impaired reactive control deficiency reflected on their increased stop-signal RTs in the stimulus-selective stop-signal task, they did not show an impaired proactive control process because their go trials’ RT differences between the choice RT and stop-signal blocks did not differ significantly from those of young adults.
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U2 - 10.1016/j.actpsy.2016.12.011
DO - 10.1016/j.actpsy.2016.12.011
M3 - Article
C2 - 28063944
AN - SCOPUS:85008165494
VL - 173
SP - 122
EP - 131
JO - Acta Psychologica
JF - Acta Psychologica
SN - 0001-6918
ER -