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Dopamine Modulates the Response of the Human Amygdala: A Study in Parkinson's Disease
Open accessAbstract
In addition to classic motor signs and symptoms, Parkinson's disease (PD) is characterized by neuropsychological and emotional deficits, including a blunted emotional response. In the present study, we explored both the neural basis of abnormal emotional behavior in PD and the physiological effects of dopaminergic therapy on the response of the amygdala, a central structure in emotion processing. PD patients and matched normal controls (NCs) were studied with blood oxygenation level-dependent functional magnetic resonance imaging during a paradigm that involved perceptual processing of fearful stimuli. PD patients were studied twice, once during a relatively hypodopaminergic state (i.e., > or =12 hr after their last dose of dopamimetic treatment) and again during a dopamine-replete state. The imaging data revealed a robust bilateral amygdala response in NCs that was absent in PD patients during the hypodopaminergic state. Dopamine repletion partially restored this response in PD patients. Our results demonstrate an abnormal amygdala response in PD that may underlie the emotional deficits accompanying the disease. Furthermore, consistent with findings in experimental animal paradigms, our results provide in vivo evidence of the role of dopamine in modulating the response of the amygdala to sensory information in human subjects.
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“Since the amygdala plays an important role in processing face affect (27), and its response may be modulated by dopamine (28;29), differences in baby face affect may have been a confounding factor.”
From What’s in a smile? Maternal brain responses to infant facial cues (2008) · cites this paper as [28]
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Metadata
- Authors
- Tessitore, A., Hariri, A. R., Fera, F., Smith, W. G., Chase, T. N., Hyde, T. M., Weinberger, D. R., & Mattay, V. S.
- Affiliations
- National Institute of Mental Health (US)
- National Institutes of Health (US)
- Venue
- The Journal of Neuroscience
- Publisher
- Society for Neuroscience
- Published
- 2002-10-15
- Volume
- 22
- Issue
- 20
- Pages
- 9099-9103
- ISSN
- 0270-6474 (ISSN-L)
- 1529-2401
- PMC
- PMC6757686
- OpenAlex
- W2158459330
- Cited by
- 293
- References
- 47
- Citations by year
- 2026: 5 · 2025: 6 · 2024: 6 · 2023: 3 · 2022: 4 · 2021: 13 · 2020: 6 · 2019: 9 · 2018: 16 · 2017: 15 · 2016: 15 · 2015: 18 · 2014: 18 · 2013: 13 · 2012: 15
- FWCI
- 5.97
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Neuroscience (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Archivio Istituzionale della Ricerca - Università degli Studi della Campania "Luigi Vanvitelli" (submittedVersion)
- Topics
- Health Sciences › Medicine › Clinical Neurology › Parkinson's Disease Mechanisms and Treatments
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Keywords
- Parkinson's disease, dopamine, amygdala, emotional deficits, fear processing, dopaminergic therapy, hypodopaminergic state, emotional processing, functional MRI
- MeSH terms
- Amygdala, Antiparkinson Agents, Behavior, Brain Mapping, Dopamine, Drug Therapy, Combination, Emotions, Facial Expression, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Parkinson Disease, Pattern Recognition, Visual, Photic Stimulation, Reaction Time, Reference Values, Dopamine Agonists
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