Article
Clinical Neurology
Sabrina M. Darrow, Diego A. Pizzagalli, Moria Smoski, Sanjay J. Mathew, John Nurnberger Jr, Sarah H. Lisanby, Dan Iosifescu, James W. Murrough, Hongqiu Yang, Richard D. Weiner, Gerard Sanacora, Richard S. E. Keefe, Allen Song, Wayne Goodman, Alexis E. Whitton, William Z. Potter, Andrew D. Krystal
Summary: This study aims to identify subgroups of people with anhedonia using multiple reward-related measures in order to develop treatments and gain a better understanding of the Positive Valence Systems Domain. Two subgroups were identified, with one subgroup reporting higher severity of anhedonia and the other subgroup showing better response to treatment.
JOURNAL OF AFFECTIVE DISORDERS
(2023)
Article
Biochemistry & Molecular Biology
Anahit Mkrtchian, Jennifer W. Evans, Christoph Kraus, Peixiong Yuan, Bashkim Kadriu, Allison C. Nugent, Jonathan P. Roiser, Carlos A. Zarate
Summary: Ketamine improved motivational symptoms in patients with treatment-resistant major depressive disorder by normalizing fronto-striatal connectivity, while disrupting this connectivity in healthy volunteers, regardless of inflammatory processes.
MOLECULAR PSYCHIATRY
(2021)
Review
Psychiatry
Angela Pisoni, Simon W. Davis, Moria Smoski
Summary: Anhedonia, the loss of pleasure or motivation, is a transdiagnostic symptom with implications for mental health. Research suggests increased anhedonia is associated with hyperactivity of the Salience Network in resting and negative stimuli contexts, and a lack of global engagement in positive stimuli contexts. Targeted treatments within the Triple Network Model of Psychopathology and future research directions are discussed.
PSYCHIATRY RESEARCH
(2021)
Article
Clinical Neurology
Shijing Wang, Francesco Leri, Sakina J. Rizvi
Summary: Anhedonia, a core symptom of major depressive disorder, extends beyond impaired consummatory pleasure to deficits in various functions, with dopamine and other neurotransmitters playing key roles. While extensive research has explored reward anticipation and outcome, there are translational gaps in understanding reward motivation, effort, valuation, and learning.
PROGRESS IN NEURO-PSYCHOPHARMACOLOGY & BIOLOGICAL PSYCHIATRY
(2021)
Article
Psychiatry
Aleksandra Gorostowicz, Sakina J. Rizvi, Sidney H. Kennedy, Adrian Andrzej Chrobak, Dominika Dudek, Katarzyna Cyranka, Joanna Piekarska, Eve Krawczyk, Marcin Siwek
Summary: The aim of this study was to validate the Polish adaptation of the Dimensional Anhedonia Rating Scale (DARS) in patients with mood disorders and healthy controls. The results showed that the Polish DARS had excellent internal consistency and very good validity, making it a valuable tool for measuring anhedonia in patients with mood disorders.
FRONTIERS IN PSYCHIATRY
(2023)
Article
Psychology, Multidisciplinary
Emma J. Kilford, Lucy Foulkes, Sarah-Jayne Blakemore
Summary: Reward processing undergoes changes in adolescence, and social interactions play a significant role in this process. This study examined the relationship between age, social reward processing, and social anxiety in female participants aged 13-34. The results showed that social anxiety was not related to subjective liking of rewards but could predict performance on reward tasks.
CURRENT PSYCHOLOGY
(2023)
Article
Neurosciences
Lucrezia Liuzzi, Katharine K. Chang, Charles Zheng, Hanna Keren, Dipta Saha, Dylan M. Nielson, Argyris Stringaris
Summary: This study investigates whether the computationally modeled dynamics of self-reported mood during monetary gambling can be used to identify trial-by-trial variations in neuronal activity. The results show that beta-gamma power is positively related to reward expectation during mood shifts, with localized sources in the posterior cingulate cortex. Additionally, reward prediction error is found to predict trial-level variations in the response of the paracentral lobule.
Article
Clinical Neurology
Xiang Wang, Jingjie Lu, Qian Liu, Quanhao Yu, Jie Fan, Feng Gao, Yan Han, Xingze Liu, Rui Yao, Xiongzhao Zhu
Summary: This study provides insight into the impact of different childhood trauma subtypes on depression symptoms. Threat and deprivation were found to differently relate to depressed mood and anhedonia. Threat and deprivation predicted more severe depressed mood, while only deprivation predicted elevated anhedonia. The effects of childhood trauma persisted into early adulthood and varied across gender.
JOURNAL OF AFFECTIVE DISORDERS
(2022)
Article
Psychology, Biological
Iulia Banica, Sarah E. Schell, Sarah E. Racine, Anna Weinberg
Summary: This study investigated the associations between self-reported anhedonia and reward sensitivity, as well as the reward positivity (RewP) following monetary, social, and food rewards. The findings suggest that social anhedonia is associated with a smaller RewP following positive social feedback, while reduced consummatory pleasure is associated with a smaller RewP following food reward.
BIOLOGICAL PSYCHOLOGY
(2022)
Article
Psychology, Clinical
Julia Klawohn, Kreshnik Burani, Alec Bruchnak, Nicholas Santopetro, Greg Hajcak
Summary: Individuals with major depressive disorder (MDD) exhibit reduced reward positivity (RewP) and blunted neural responses to pleasant pictures, which may relate to anhedonia and decreased emotional engagement. The deficits in RewP and late positive potential (LPP) are independent neural markers of MDD and can help improve its classification.
PSYCHOLOGICAL MEDICINE
(2021)
Article
Clinical Neurology
Cristina Varo, Hanne Lie Kjaerstad, Emilie Poulsen, Iselin Meluken, Eduard Vieta, Lars Vedel Kessing, Maj Vinberg, Kamilla Woznica Miskowiak
Summary: Patients with mood disorders exhibit heterogeneity in emotional cognition, with three clusters identified: 'emotionally preserved', 'emotionally blunted' and 'emotionally volatile'. These emotional cognition profiles are associated with non-emotional cognition and familial risk, highlighting the importance of screening and treating emotional cognition in mood disorders.
EUROPEAN NEUROPSYCHOPHARMACOLOGY
(2021)
Review
Behavioral Sciences
Martine Skumlien, Christelle Langley, Will Lawn, Valerie Voon, H. Valerie Curran, Jonathan P. Roiser, Barbara J. Sahakian
Summary: This study found that cannabis use is associated with specific impairments in reward and motivation, including increased anhedonia and apathy, as well as deficiencies in reward processing. Longitudinal studies utilizing multiple behavioral and neuroimaging measures may further clarify the impact of cannabis on motivational and reward processes.
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
(2021)
Article
Pharmacology & Pharmacy
Alicja Puscian, Maciej Winiarski, Szymon LEski, Lukasz Charzewski, Tomasz Nikolaev, Joanna Borowska, Jakub M. Dzik, Monika Bijata, Hans-Peter Lipp, Magdalena Dziembowska, Ewelina Knapska
Summary: Chronic fluoxetine treatment has diverse effects on various forms of neuronal plasticity, potentially explaining its opposing effects on the brain and behavior. The reported side effects of fluoxetine may pose a threat to patients.
BRITISH JOURNAL OF PHARMACOLOGY
(2021)
Article
Psychology, Clinical
Deborah Ducasse, Jonathan Dubois, Isabelle Jaussent, Jean-Michel Azorin, Bruno Etain, Sebastien Gard, Chantal Henry, Thierry Bougerol, Jean-Pierre Kahn, Valerie Aubin, Frank Bellivier, Raoul Belzeaux, Caroline Dubertret, Julien Dubreucq, Pierre-Michel Llorca, Josephine Loftus, Christine Passerieux, Mircea Polosan, Ludovic Samalin, Marion Leboyer, Antoine Yrondi, Djamila Bennabi, Emmanuel Haffen, Julia Maruani, Etienne Allauze, Vincent Camus, Thierry D'Amato, Olivier Doumy, Jerome Holtzmann, Christophe Lancon, Fanny Moliere, Remi Moirand, Raphaelle Marie Richieri, Mathilde Horn, Laurent Schmitt, Florian Stephan, Jean-Baptiste Genty, Guillaume Vaiva, Michel Walter, Wissam El-Hage, Bruno Aouizerate, Emilie Olie, Philippe Courtet
Summary: Anhedonia in patients with mood disorders is significantly associated with suicidal ideation, highlighting the importance of targeting hedonia in mood disorders. However, the association between anhedonia and suicide attempt did not remain significant after adjustment for confounding factors. Further research focusing on pleasure in life through eudaimonia is needed.
DEPRESSION AND ANXIETY
(2021)
Article
Medicine, General & Internal
Rashmi Patel, Jessica Irving, Aimee Brinn, Matthew Taylor, Hitesh Shetty, Megan Pritchard, Robert Stewart, Paolo Fusar-Poli, Philip McGuire
Summary: This study investigated the associations of bipolar depression and depressive symptoms with clinical outcomes. The results showed that the presence of bipolar or overlapping symptoms in patients with unipolar depression is associated with worse clinical outcomes. Symptom-based approaches are more effective in predicting subsequent clinical outcomes than psychiatric diagnosis alone.
Article
Neurosciences
Christian A. Webb, Laura Murray, Anna O. Tierney, Erika E. Forbes, Diego A. Pizzagalli
Summary: Anhedonia is a cardinal characteristic of depression and one of the most common residual symptoms following treatment. Behavioral Activation (BA) has been shown to be effective in treating depression, particularly in adolescents. This study found that BA significantly reduced anhedonia in adolescents, and enhanced pre-treatment neural reward responsiveness predicted better treatment outcome.
NEUROPSYCHOPHARMACOLOGY
(2023)
Article
Neurosciences
Ann M. Iturra-Mena, Brian D. Kangas, Oanh T. Luc, David Potter, Diego A. Pizzagalli
Summary: Blunted reward learning and reward-related activation in the corticostriatal-midbrain circuitry are linked to anhedonia and depression. This study used event-related potentials and spectral analyses to identify the electrophysiological signatures of reward learning in rats. The findings suggest that these approaches could be used to evaluate novel therapeutics targeting anhedonia.
NEUROPSYCHOPHARMACOLOGY
(2023)
Article
Clinical Neurology
Ann M. Iturra-Mena, Brian D. Kangas, Diego A. Pizzagalli
INTERNATIONAL JOURNAL OF NEUROPSYCHOPHARMACOLOGY
(2023)
Article
Psychology, Developmental
Adrienne L. Romer, Boyu Ren, Diego A. Pizzagalli
Summary: This study found that baseline brain structure is related to changes in psychopathology during preadolescence. Smaller brain volume and surface area are associated with higher levels of psychopathology. Lower baseline cortical thickness is related to decreases in internalizing psychopathology.
JOURNAL OF THE AMERICAN ACADEMY OF CHILD AND ADOLESCENT PSYCHIATRY
(2023)
Article
Biochemistry & Molecular Biology
Shabnam Hossein, Jessica A. Cooper, Brittany A. M. DeVries, Makiah R. Nuutinen, Emma C. Hahn, Philip A. Kragel, Michael T. Treadway
Summary: Stress is a significant risk factor for Major Depressive Disorder (MDD), but its neural mechanisms are poorly understood. This study found attenuated connectivity between the basolateral amygdala and prefrontal cortex in MDD patients, which helps to identify circuit mechanisms underlying the effects of acute stress and their role in mood disorders.
MOLECULAR PSYCHIATRY
(2023)
Article
Neurosciences
Kevin J. Clancy, Quentin Devignes, Poornima Kumar, Victor May, Sayamwong E. Hammack, Eylul Akman, Emily J. Casteen, Cameron D. Pernia, Sydney A. Jobson, Michael W. Lewis, Nikolaos P. Daskalakis, William A. A. Carlezon Jr, Kerry J. Ressler, Scott L. Rauch, Isabelle M. Rosso
Summary: The PACAP system is involved in PTSD and amygdala-mediated arousal and threat reactivity. This study examined the association between blood-borne PACAP levels and amygdala-default mode network (DMN) connectivity in trauma-exposed adults. Higher PACAP levels were associated with increased amygdala connectivity with posterior DMN regions, specifically in female participants and the centromedial subregion of the amygdala. The findings provide novel evidence for an association between PACAP and intrinsic amygdala connectivity patterns in PTSD.
NEUROPSYCHOPHARMACOLOGY
(2023)
Article
Psychology, Clinical
Quentin Dercon, Sara Z. Mehrhof, Timothy R. Sandhu, Caitlin Hitchcock, Rebecca P. Lawson, Diego A. Pizzagalli, Tim Dalgleish, Camilla L. Nord
Summary: Cognitive distancing is a commonly used emotion regulation strategy in psychological treatment. This study reveals that cognitive distancing improves task performance, enhances learning from reward and loss, and promotes effective engagement with negative information. These findings suggest that cognitive distancing has therapeutic benefits for mental health disorders.
PSYCHOLOGICAL MEDICINE
(2023)
Editorial Material
Neurosciences
Negar Fani, Michael T. Treadway
NEUROPSYCHOPHARMACOLOGY
(2023)
Article
Psychology, Biological
Philip A. Kragel, Michael T. Treadway, Roee Admon, Diego A. Pizzagalli, Emma C. Hahn
Summary: The study develops a human functional magnetic resonance imaging signature to identify the specific brain activity related to states of pleasure. The signature is sensitive to pleasant tastes and affect evoked by humour. These findings provide evidence for the distributed basis of pleasure in humans.
NATURE HUMAN BEHAVIOUR
(2023)
Article
Substance Abuse
Jacqueline K. Gollan, Gabrielle Liverant, Nancy C. Jao, Kayla A. Lord, Alexis E. Whitton, Lee Hogarth, Erica Fox, Anna-Marika Bauer, Mackenzie Hosie Quinn, Diego A. Pizzagalli, Frank T. Leone, George D. Papandonatos, Robert A. Schnoll, Brian Hitsman
Summary: This study investigated how adult daily smokers learned to seek reward during a 12-week treatment combining behavioral activation and varenicline. The results showed that smokers with more severe depressive symptoms experienced a decline in reward learning during smoking cessation treatment, posing challenges for standard smoking cessation approaches.
NICOTINE & TOBACCO RESEARCH
(2023)