Allison M. Letkiewicz
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View article: Smartphone language and resting‐state <scp>EEG</scp> indicators of self‐focused attention prospectively predict major depressive disorder risk in adolescents
Smartphone language and resting‐state <span>EEG</span> indicators of self‐focused attention prospectively predict major depressive disorder risk in adolescents Open
Background Central to major depressive disorder (MDD) onset and maintenance is maladaptive self‐focused attention, which can be reliably indexed by greater: (a) usage of first‐person singular pronouns (e.g., I ) in natural language and (b)…
View article: EEG-based brain connectivity and sentiment analysis from smartphone social communication: insights into remitted major depressive disorder among adolescents
EEG-based brain connectivity and sentiment analysis from smartphone social communication: insights into remitted major depressive disorder among adolescents Open
Although prior research has identified abnormal brain connectivity in remitted depressed adolescents, there is limited work associating these alterations with real-time affective dynamics, which may shed insight about specific biological m…
View article: Longitudinal invariance of the Children’s Depression Rating Scale–Revised in adolescents.
Longitudinal invariance of the Children’s Depression Rating Scale–Revised in adolescents. Open
The Children's Depression Rating Scale-Revised (CDRS-R) is a widely used interview measure of adolescent major depression (major depressive disorder), with sum scores and their changes over time interpreted as changes in one underlying con…
View article: Neurophysiological responses to emotional faces predict dynamic fluctuations in affect in adolescents
Neurophysiological responses to emotional faces predict dynamic fluctuations in affect in adolescents Open
The ability to accurately identify and interpret others' emotions is critical for social and emotional functioning during adolescence. Indeed, previous research has identified that laboratory‐based indices of facial emotion recognition and…
View article: A prospective study of the relative contribution of adolescent peer support quantity and quality to depressive symptoms
A prospective study of the relative contribution of adolescent peer support quantity and quality to depressive symptoms Open
Background During adolescence, peer support has an increasingly important role in identity formation and well‐being. Prior research has identified that lack of social support from peers in adolescence is a potent risk factor for depression…
View article: Examining the Construct Validity of Borderline Personality Traits Using Familial Aggregation and Other External Validators
Examining the Construct Validity of Borderline Personality Traits Using Familial Aggregation and Other External Validators Open
Numerous studies have questioned the reliability and validity of borderline personality disorder's (BPD) categorical conceptualization. DSM-5 Section III's alternative trait-based model of BPD may better capture borderline pathology, but a…
View article: Reward-Based Reinforcement Learning in Altered Among Individuals with a History of Major Depressive Disorder and Psychomotor Retardation Symptoms
Reward-Based Reinforcement Learning in Altered Among Individuals with a History of Major Depressive Disorder and Psychomotor Retardation Symptoms Open
Background: Reward-based reinforcement learning impairments are common in major depressive disorder, but it is unclear which reward-based reinforcement learning is disrupted in remitted major depression (rMDD). As the neurobiological subst…
View article: Evaluating the criterion validity of hierarchical psychopathology dimensions across models: Familial aggregation and associations with research domain criteria (sub)constructs.
Evaluating the criterion validity of hierarchical psychopathology dimensions across models: Familial aggregation and associations with research domain criteria (sub)constructs. Open
The Hierarchical Taxonomy of Psychopathology (HiTOP) posits that psychopathology is a hierarchy of correlated dimensions. Numerous studies have examined the validity of these dimensions using bifactor models, in which each disorder loads o…
View article: Value Estimation and Latent-State Update-Related Neural Activity During Fear Conditioning Predict Posttraumatic Stress Disorder Symptom Severity
Value Estimation and Latent-State Update-Related Neural Activity During Fear Conditioning Predict Posttraumatic Stress Disorder Symptom Severity Open
Learning theories of posttraumatic stress disorder (PTSD) purport that fear learning processes, such as those that support fear acquisition and extinction, are impaired. Computational models that aim to capture specific processes involved …
View article: Cumulative Childhood Maltreatment and Executive Functioning in Adulthood
Cumulative Childhood Maltreatment and Executive Functioning in Adulthood Open
Maltreatment during childhood has detrimental consequences for survivors. Among children, maltreatment predicts deficits in cognition and impairment in academic and emotional functioning. Although studied extensively in children, the exten…
View article: Childhood abuse history and attention bias in adults
Childhood abuse history and attention bias in adults Open
Attention biases toward unpleasant information are evident among children and adults with a history of abuse and have been identified as a potential pathway through which abused children develop psychopathology. Identifying whether a histo…
View article: Severe Sexual Abuse Reduces Frontoparietal Network Activity during Model-Based Reinforcement Learning Updates
Severe Sexual Abuse Reduces Frontoparietal Network Activity during Model-Based Reinforcement Learning Updates Open
Trauma and trauma-related disorders are characterized by altered learning styles. Two learning processes that have been delineated using computational modeling are model-free and model-based reinforcement learning (RL), characterized by tr…
View article: Anxiety Patients Show Reduced Working Memory Related dlPFC Activation During Safety and Threat
Anxiety Patients Show Reduced Working Memory Related dlPFC Activation During Safety and Threat Open
This work suggests that the cognitive deficits seen in anxiety patients may represent a key component of clinical anxiety, rather than a consequence of threat.