The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.
Reward system activation in schizophrenic patients switched from typical neuroleptics to olanzapine
Abstract
Rationale High blockade of dopamine D2 receptors in the ventral striatum including the nucleus accumbens may interfere with reward anticipation and cause secondary negative symptoms such as apathy or anhedonia. This may not be the case with newer neuroleptics such as olanzapine, which show less dopamine D2 receptor blockade and a faster off-rate from the receptor.Objectives We used functional magnetic resonance imaging to assess the blood oxygenation level dependent response in the ventral striatum of schizophrenics medicated with typical neuroleptics (T1) and after switching them to olanzapine (T2) and of healthy control subjects at corresponding time points during reward anticipation.Materials and methods Ten schizophrenics, while medicated with typical neuroleptics (T1) and after having been switched to olanzapine (T2), and ten matched healthy volunteers participated in a monetary incentive delay task, in which visual cues predicted that a rapid response to a subsequent target stimulus would either result in monetary gain or have no consequence.Results During reward anticipation, healthy volunteers showed significantly higher ventral striatal activation compared to schizophrenic patients treated with typical neuroleptics but not olanzapine, which was reflected in a significant interaction between group and session. In patients treated with typical neuroleptics, but not with olanzapine, decreased left ventral striatal activation was correlated with negative symptoms.Conclusions Failure to activate the ventral striatum during reward anticipation was pharmacologically state-dependent and observed only in patients treated with typical neuroleptics but not with olanzapine, which may indicate that this drug did not induce secondary negative symptoms via interference with reward anticipation.
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“A handful of studies also suggest that striatal responses during monetary anticipation in schizophrenia are partially normalized by the antipsychotic, olanzapine [279,417,423] but not by other antipsychotics [418]”
From Reward circuitry dysfunction in psychiatric and neurodevelopmental disorders and genetic syndromes: animal models and clinical findings (2012) · cites this paper as [423]
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Metadata
- Authors
- Schlagenhauf, F., Juckel, G., Koslowski, M., Kahnt, T., Knutson, B., Dembler, T., Kienast, T., Gallinat, J., Wrase, J., & Heinz, A.
- Affiliations
- Stiftung Charité (DE)
- Charité – Universitätsmedizin Berlin (DE)
- Stanford University (US)
- Corresponding author
- Heinz, Andreas
- ORCID
- Venue
- Psychopharmacology
- Published
- 2007-12-21
- Volume
- 196
- Issue
- 4
- Pages
- 673-684
- ISSN
- 0033-3158 (ISSN-L)
- 1432-2072
- OpenAlex
- W2153437292
- Cited by
- 204
- References
- 48
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 1 · 2023: 7 · 2022: 4 · 2021: 6 · 2020: 4 · 2019: 10 · 2018: 12 · 2017: 14 · 2016: 20 · 2015: 22 · 2014: 19 · 2013: 18 · 2012: 17
- FWCI
- 6.46
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Psychopharmacology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Keywords
- schizophrenia, olanzapine, typical antipsychotics, reward anticipation, ventral striatum, nucleus accumbens, dopamine D2 receptor blockade, negative symptoms, anhedonia, apathy, monetary incentive delay task, antipsychotic switching, functional MRI
- MeSH terms
- Olanzapine, Adult, Analysis of Variance, Benzodiazepines, Female, Flupenthixol, Fluphenazine, Haloperidol, Humans, Magnetic Resonance Imaging, Male, Motivation, Nucleus Accumbens, Oxygen, Psychomotor Performance, Reaction Time, Reward, Schizophrenia, Schizophrenic Psychology, Antipsychotic Agents, Neostriatum, Receptors, Dopamine D2, Dopamine D2 Receptor Antagonists
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