@article{ref1,
title="A dissociation in attentional control: evidence from methamphetamine dependence",
journal="Biological psychiatry",
year="2005",
author="Salo, Ruth and Nordahl, Thomas E. and Moore, Charles and Waters, Christy and Natsuaki, Yutaka and Galloway, Gantt P. and Kile, Shawn and Sullivan, Edith V.",
volume="57",
number="3",
pages="310-313",
abstract="BACKGROUND: Selective attention comprises multiple, dissociable component processes, including task shifting and selective inhibition. The goal of this study was to test whether task-shifting, selective inhibition, or both processes were impaired in long-term but currently abstinent methamphetamine-dependent individuals. METHODS: Participants were 34 methamphetamine-dependent subjects and 20 nonsubstance abusing controls who were tested on an alternating-runs switch task with conflict sequences that required subjects to switch tasks on every second trial (AABBAABB). RESULTS: Methamphetamine-dependent individuals committed more errors on trials that required inhibition of distracting information compared with controls (methamphetamine = 17%; controls = 13%; p = .02). By contrast, error rates did not differ between the groups on switch trials (methamphetamine = 7%; controls = 6%; p = .68). CONCLUSIONS: These results indicate that selective inhibition, but not task switching, is selectively compromised by methamphetamine.<p /><p>Language: en</p>",
language="en",
issn="0006-3223",
doi="10.1016/j.biopsych.2004.10.035",
url="http://dx.doi.org/10.1016/j.biopsych.2004.10.035"
}