Hypomania and depression associated with distinct neural activity for immediate and future rewards
Hypomania and depression associated with distinct neural activity for immediate and future rewards
Bipolar spectrum and unipolar depressive disorders have been associated with distinct and opposite profiles of reward‐related neural activity. These opposite profiles may reflect a differential preexisting vulnerability for both types of disorders. In support, recent ERP studies find that, following reward feedback, a larger reward positivity (RewP) is associated with greater vulnerability for bipolar spectrum disorders, whereas a smaller RewP is associated with greater vulnerability for depression. However, prior studies have investigated only immediate rewards and have not examined dimensions of both bipolar disorder and unipolar depression within the same sample. The present study is the first to investigate feedback‐related ERP correlates of proneness to hypomania and unipolar depressive tendencies within the same sample and to expand our scope to include future rewards. Participants completed a modified time estimation task where the same monetary reward was available immediately or at one of five different future dates. Results revealed proneness to hypomania and unipolar depressive tendencies were related to an elevated and blunted RewP, respectively, but only following immediate rewards (i.e., today). Following rewards in the distant future (e.g., 8 months), proneness to hypomania and depressive tendencies were associated with elevated and blunted amplitudes for the P3, respectively, a subsequent ERP component reflecting motivational salience during extended feedback processing. Furthermore, these opposing profiles were independent of, and significantly different from, one another. These results suggest that feedback‐related ERPs following immediate and future rewards are candidate biomarkers that can physiologically separate vulnerability for bipolar spectrum from unipolar depressive disorders.
Glazer, James
01e2422a-474b-4973-b536-f4dcede19b13
Kelley, Nicholas
445e767b-ad9f-44f2-b2c6-d981482bb90b
Pornpattananangkul, Narun
c02d2de1-2b26-47bf-acbf-f94b0fa77ca8
Nusslock, Robin
e254120f-5efa-4ab7-81c6-5f85d510aaee
March 2019
Glazer, James
01e2422a-474b-4973-b536-f4dcede19b13
Kelley, Nicholas
445e767b-ad9f-44f2-b2c6-d981482bb90b
Pornpattananangkul, Narun
c02d2de1-2b26-47bf-acbf-f94b0fa77ca8
Nusslock, Robin
e254120f-5efa-4ab7-81c6-5f85d510aaee
Glazer, James, Kelley, Nicholas, Pornpattananangkul, Narun and Nusslock, Robin
(2019)
Hypomania and depression associated with distinct neural activity for immediate and future rewards.
Psychophysiology, 56 (3), [e13301].
(doi:10.1111/psyp.13301).
Abstract
Bipolar spectrum and unipolar depressive disorders have been associated with distinct and opposite profiles of reward‐related neural activity. These opposite profiles may reflect a differential preexisting vulnerability for both types of disorders. In support, recent ERP studies find that, following reward feedback, a larger reward positivity (RewP) is associated with greater vulnerability for bipolar spectrum disorders, whereas a smaller RewP is associated with greater vulnerability for depression. However, prior studies have investigated only immediate rewards and have not examined dimensions of both bipolar disorder and unipolar depression within the same sample. The present study is the first to investigate feedback‐related ERP correlates of proneness to hypomania and unipolar depressive tendencies within the same sample and to expand our scope to include future rewards. Participants completed a modified time estimation task where the same monetary reward was available immediately or at one of five different future dates. Results revealed proneness to hypomania and unipolar depressive tendencies were related to an elevated and blunted RewP, respectively, but only following immediate rewards (i.e., today). Following rewards in the distant future (e.g., 8 months), proneness to hypomania and depressive tendencies were associated with elevated and blunted amplitudes for the P3, respectively, a subsequent ERP component reflecting motivational salience during extended feedback processing. Furthermore, these opposing profiles were independent of, and significantly different from, one another. These results suggest that feedback‐related ERPs following immediate and future rewards are candidate biomarkers that can physiologically separate vulnerability for bipolar spectrum from unipolar depressive disorders.
Text
Glazer et al 10_3_18
- Accepted Manuscript
More information
Accepted/In Press date: 1 January 2018
e-pub ahead of print date: 15 November 2018
Published date: March 2019
Identifiers
Local EPrints ID: 432982
URI: http://eprints.soton.ac.uk/id/eprint/432982
ISSN: 0048-5772
PURE UUID: 7173caa2-a648-4ce1-8ed4-70c757e1b798
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Date deposited: 05 Aug 2019 16:30
Last modified: 16 Mar 2024 08:03
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Author:
James Glazer
Author:
Narun Pornpattananangkul
Author:
Robin Nusslock
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