Kathryn E Lewandowski

Biographic Data

ID7375622
NAMEKathryn E Lewandowski
GIVEN NAMESKathryn E
FAMILY NAMELewandowski
SIGNATURELEWANDOWSKI K E
AFFILIATIONSHarvard University
ORCID0000-0003-1477-6187
VERIFIEDYes
TOTAL WORKS5
TOTAL CITATIONS0
AUTHOR COUNT5
EDITOR COUNT0
FIRST PUBLICATION YEAR2016
LATEST PUBLICATION YEAR2025
H-INDEX0

  • Characterizing heterogeneity in motivational impairments in psychosis

    Open AccessKathryn E Lewandowski, Jintian Luo et al.ARTICLEFrontiers in Psychiatry2025

    These findings suggest that aspects of approach and avoidance motivation may be both uniquely and additively associated with anxiety, depression, and hedonic experiences. Characterization of motivational profiles may help parse heterogeneity in motivation and predict other important aspects of illness

  • Diagnostic Stability of Primary Psychotic Disorders in a Research Sample

    Open AccessAndrea J Wood, Amber Carroll et al.ARTICLEFrontiers in Psychiatry2021

    Psychiatric diagnosis is often treated as a stable construct both clinically and in research; however, some evidence suggests that diagnostic change may be common, which may impact research validity and clinical care. In the present study we examined diagnostic stability in individuals with psychosis over time. Participants with a diagnosis of any psychotic disorder ( n = 142) were assessed at two timepoints using the Structured Clinical Intervie…

  • Cerebellar-Cortical Connectivity Is Linked to Social Cognition Trans-Diagnostically

    Open AccessRoscoe O Brady, Adam Beermann et al.ARTICLEFrontiers in Psychiatry2020

    Background: Psychotic disorders are characterized by impairment in social cognitive processing, which is associated with poorer community functioning. However, the neural mechanisms of social impairment in psychosis remain unclear. Social impairment is a hallmark of other psychiatric illnesses as well, including autism spectrum disorders (ASD), and the nature and degree of social cognitive impairments across psychotic disorders and ASD are simila…

  • White Matter Measures and Cognition in Schizophrenia

    Open AccessCemre Erkol, Talia R Cohen et al.ARTICLEFrontiers in Psychiatry2020

    White matter (WM) abnormalities are commonly reported in schizophrenia but whether these arise from the axon or myelin compartments or both is not known. In addition, the relationship between WM abnormalities and cognitive function is not fully explored in this condition. We recruited 39 individuals with schizophrenia spectrum disorders and 37 healthy comparison subjects. All participants underwent MRI scanning at 4 Tesla to collect data in the p…

  • Reward Learning, Neurocognition, Social Cognition, and Symptomatology in Psychosis

    Open AccessKathryn E Lewandowski, Alexis E Whitton et al.ARTICLEFrontiers in Psychiatry2016

    Reward learning was associated with symptoms of psychosis - in particular negative symptoms - across diagnoses, and was predictive of worse social cognition. Reward learning was not associated with neurocognitive performance, suggesting that, across patient groups, social cognition but not neurocognition may share common pathways with this aspect of reinforcement learning. Better understanding of how cognitive dysfunction and reward processing de…