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No difference in frontal cortical activity during an executive functioning task after acute doses of aripiprazole and haloperidol
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2015 (English)In: Frontiers in Human Neuroscience, ISSN 1662-5161, Vol. 9, 296Article in journal (Refereed) Published
Abstract [en]

Background: Aripiprazole is an atypical antipsychotic drug that is characterized by partial dopamine D2 receptor agonism. Its pharmacodynamic profile is proposed to be beneficial in the treatment of cognitive impairment, which is prevalent in psychotic disorders. This study compared brain activation characteristics produced by aripiprazole with that of haloperidol, a typical D2 receptor antagonist, during a task targeting executive functioning.

Methods: Healthy participants received an acute oral dose of haloperidol, aripiprazoleor placebo before performing an executive functioning task while blood-oxygen-level dependent (BOLD) functional magnetic resonance imaging (fMRI) was carried out.

Results: There was a tendency towards reduced performance in the aripiprazole group compared to the two other groups. The image analysis yielded a strong task related BOLD-fMRI response within each group. An uncorrected between-group analysis showed that aripiprazole challenge resulted in stronger activation in the frontal and temporal gyri and the putamen compared with haloperidol challenge, but after correcting for multiple testing there was no significant group difference.

Conclusion: No significant group differences between aripiprazole and haloperidol infrontal cortical activation were obtained when corrected for multiple comparisons.

Place, publisher, year, edition, pages
2015. Vol. 9, 296
Keyword [en]
dopamine, aripiprazole, haloperidol, executive function, healthy volunteers, fMRI
National Category
URN: urn:nbn:se:hkr:diva-13997DOI: 10.3389/fnhum.2015.00296ISI: 000356072000001PubMedID: 26074803OAI: diva2:817183
Available from: 2015-06-04 Created: 2015-06-04 Last updated: 2015-09-02Bibliographically approved

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Jensen, Jimmy
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Avdelningen för Humanvetenskap
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