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- Flores-Dourojeanni, J. P. (author)
Temporally Specific Roles of Ventral Tegmental Area Projections to the Nucleus Accumbens and Prefrontal Cortex in Attention and Impulse Control
- Article/chapterEnglish2021
Publisher, publication year, extent ...
- 2021-04-09
- Society for Neuroscience,2021
Numbers
- LIBRIS-ID:oai:gup.ub.gu.se/305407
- https://gup.ub.gu.se/publication/305407URI
- https://doi.org/10.1523/jneurosci.0477-20.2020DOI
Supplementary language notes
- Language:English
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- SwePubSwePub
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Notes
- Deficits in impulse control and attention are prominent in the symptomatology of mental disorders such as attention deficit hyperactivity disorder (ADHD), substance addiction, schizophrenia, and bipolar disorder, yet the underlying mechanisms are incompletely understood. Frontostriatal structures, such as the nucleus accumbens (NAcb), the medial prefrontal cortex (mPFC), and their dopaminergic innervation from the ventral tegmental area (VTA) have been implicated in impulse control and attention. What remains unclear is how the temporal pattern of activity of these VTA projections contributes to these processes. Here, we optogenetically stimulated VTA dopamine (DA) cells, as well as VTA projections to the NAcb core (NAcbC), NAcb shell (NAcbS), and the mPFC in male rats performing the 5-choice serial reaction time task (5-CSRTT). Our data show that stimulation of VTA DA neurons, and VTA projections to the NAcbC and the mPFC immediately before presentation of the stimulus cue, impaired attention but spared impulse control. Importantly, in addition to reducing attention, activation of VTA-NAcbS also increased impulsivity when tested under a longer intertrial interval (ITI), to provoke impulsive behavior. Optogenetic stimulation at the beginning of the ITI only partially replicated these effects. In sum, our data show how attention and impulsivity are modulated by neuronal activity in distinct ascending output pathways from the VTA in a temporally specific manner. These findings increase our understanding of the intricate mechanisms by which mesocorticolimbic circuits contribute to cognition.
Subject headings and genre
- MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Neurovetenskaper hsv//swe
- MEDICAL AND HEALTH SCIENCES Basic Medicine Neurosciences hsv//eng
- 5-CSRTT
- accumbens
- attention
- dopamine
- impulsivity
- VTA
- reaction-time-task
- dopamine neurons
- performance
- shell
- core
- rat
- activation
- lesions
- reward
- receptors
- Neurosciences & Neurology
Added entries (persons, corporate bodies, meetings, titles ...)
- van Rijt, C. (author)
- van den Munkhof, M. H. (author)
- Boekhoudt, L. (author)
- Luijendijk, M. C. M. (author)
- Vanderschuren, Ljmj (author)
- Adan, Roger A. H.Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi,Institute of Neuroscience and Physiology(Swepub:gu)xadaro (author)
- Göteborgs universitetInstitutionen för neurovetenskap och fysiologi (creator_code:org_t)
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- In:Journal of Neuroscience: Society for Neuroscience41:19, s. 4293-43040270-64741529-2401
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