Nauder Namaky

Brown University · Department of Psychiatry and Human Behavior

Introduction: This study's overarching goal is to examine the relationship between brain circuits and suicidal thoughts and behaviours (STBs) in a transdiagnostic sample of US military veterans. Because STBs have been linked with maladaptive decision-making and disorders linked to impulsivity, this investigation focuses on valence and inhibitory c...

Objective: Social support has been linked to a vast range of beneficial health outcomes. However, the physiological mechanisms of social support are not well characterized. Drawing on fMRI and health-related outcome data, this study aimed to understand how neural measures of "yielding" - the reduction of brain activity during social support - mode...

Will connectome-based predictive modeling change how we care for people at risk of late-life suicide? A novel two-step modeling approach used by Gao et al. in their study sheds light on the road ahead.

Prospection, the mental simulation of future events, has been theoretically linked to physical and mental health. Prior studies have found that prospection is malleable; however, no research to our knowledge has tested whether a scalable intervention explicitly targeting the simulation of positive future outcomes can lead to more generalized positi...

Frontal brain asymmetry has been linked to motivational processes in infants and adults, with left lateralization reflecting motivation to approach and right lateralization reflecting motivation to withdraw. We examined the hypothesis that variability in infants’ social motivation may be linked to genetic variation in the oxytocin system. Eleven-mo...

Background Brief computerized programs that train less threatening interpretations (termed Cognitive Bias Modification for Interpretations, or CBM-I) can shift interpretation biases and subsequent anxiety symptoms. However, results have been inconsistent, particularly for studies conducted over the Internet. Methods The current exploratory study t...

Introduction. Variability in the motivation to approach or withdraw from others displayed in infancy is thought to have long-term effects on human social development. Frontal brain asymmetry has been linked to motivational processes in infants and adults, with greater left frontal asymmetry reflecting motivation to approach and greater right fronta...

In this work, we introduce the preliminary analysis of driver’s physiological data after receiving take-over request (TOR). Studies have shown that physiological measurements on drivers may provide better insights into the cognitive behavior and performance of drivers. Our goal is to examine the effect of two common TOR modalities (visual-auditory...

Prospection, the mental simulation of future events, has been theoretically linked to physical and mental health. Prior studies have found that prospection is malleable; however, no research to our knowledge has tested whether a scalable intervention explicitly targeting the simulation of positive future outcomes can lead to more generalized positi...

Cognitive Bias Modification to reduce threat interpretations (CBM-I) is a computer-based paradigm designed to train a less negative interpretation bias that has shown some success in the lab, but results for web-based CBM-I are often mixed. To test possible explanations for the poorer results online, participants high in social anxiety (N = 379) we...

Researchers and clinicians routinely rely on patients’ retrospective emotional self-reports to guide diagnosis and treatment, despite evidence of impaired autobiographical memory and retrieval of emotional information in depression and anxiety. To clarify the nature and specificity of these impairments, we conducted two large online data collection...

In prior work, we proposed that the related processes of status differentiation and stigmatization both diminish the status of negatively labeled groups, but that only stigma also engenders social rejection, in part via appraisals of abnormality (Lucas, & Phelan, 2012, Phelan, Lucas, Ridgeway, & Taylor, 2014). We found support for this model using...

Objective: The current study used a research domain criteria (RDoC) approach to assess age differences in multiple indicators of attention bias and its ties to anxiety, examining stimulus domain and cognitive control as moderators of older adults' oft-cited positivity effect (bias towards positive and away from negative stimuli, when compared to y...

Introduction: Drinking identity strength (how strongly one views oneself as a drinker) is a promising risk factor for hazardous drinking. A critical next step is to investigate whether the centrality of drinking identity (i.e., the relative importance of drinking vs. other identity domains, like well-being, relationships, education) also plays a ro...

Drinking identity (viewing oneself as a drinker) is a potential risk factor for problematic drinking in US undergraduate samples. Whether that risk extends to a broader, more general US sample is unknown. Additionally, there are critical, unanswered questions with respect to moderators of the drinking identity-problematic drinking relationship; an...