Feature learning both shapes and is shaped by spatial object-similarity representations DOI Open Access
Jonathan Doyon, Sarah Shomstein, Gabriela Rosenblau

et al.

Published: July 20, 2023

Our knowledge of objects is bound together in semantic networks that can be spatially represented and reduced to simple binary category memberships or expanded multi-dimensional feature maps. How these representations shape are turn shaped by learning remains unclear. Here, we examined how object similarity influence implicit a dimension alters this representation. In Experiment 1, establish the spatial representation everyday belonging three discrete categories: activity, fashion, foods with various subcategories. Participants (N=287) arranged subsets 120 object-pictures using multi arrangement task (MAT). Their revealed configuration broadly reflected predefined (sub)categories. 2, investigated whether from 1 were applied when implicitly about specific features altered representations. A separate group participants (N=87) asked rate much two pseudo-words (‘ation’ ‘soaf’) subset 1. Unbeknown participants, meant either colorful large. Despite items not being repeated, inferred meaning through trial-by-trial feedback as evidenced significant reductions prediction errors over time both large conditions. relied on reinforcement model scaled fine granularity item-level relationships established MAT deduce nonwords question. Finally, question participants’ configurations post-learning 2.Overall, our results point organization item similarity, its employment during reorganization result learning. This carryover longer-term elucidates mechanism integrate new concepts into existing

Language: Английский

Individual differences in autism-like traits are associated with reduced goal emulation in a computational model of observational learning DOI
Qianying Wu, Sarah Soyeon Oh, Reza Tadayonnejad

et al.

Nature Mental Health, Journal Year: 2024, Volume and Issue: 2(9), P. 1032 - 1044

Published: July 10, 2024

Language: Английский

Citations

4
Dissociating social reward learning and behavior in alcohol use disorder DOI Creative Commons
Simon Jangard, Björn Lindström, Lotfi Khemiri

et al.

Translational Psychiatry, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 25, 2025

Language: Английский

Citations

0
Reduction of rejection‐related emotions by transcranial direct current stimulation over right ventrolateral prefrontal cortex in borderline personality disorder: A double‐blind randomized pilot study DOI Creative Commons

Alessandro Lisco,

Alessia Gallucci,

Chiara Fabietti

et al.

Psychiatry and Clinical Neurosciences, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 8, 2025

Borderline personality disorder (BPD) patients show negative emotional reactions to both excluding and including social scenarios, with levels normalizing only during extreme inclusion. Prior research among healthy individuals highlights the right ventrolateral prefrontal cortex (rVLPFC) role in regulating responses exclusion, since transcranial direct current stimulation (tDCS) of rVLPFC decreases rejection-related emotions following exclusion. This pilot study investigated whether, BPD patients, tDCS over reduces not after exclusion but also fair Forty randomly received either real or sham on before participating Cyberball paradigm, which involved phases inclusion, over-inclusion. Participants self-reported their level each phase. Transcranial reduced Specifically, those Real group exhibited comparable over-including unlike Sham who experienced heightened inclusion compared patients' tendency feel rejected fairly scenarios. These findings confirm involvement regulation highlight a therapeutic potential for moderating BPD's typical supports application treatment, providing new insights into neuromodulatory interventions that can aid better regulate varying

Language: Английский

Citations

0
Feature identification learning both shapes and is shaped by spatial object-similarity representations DOI Creative Commons
Jonathan Doyon, Sarah Shomstein, Gabriela Rosenblau

et al.

Communications Psychology, Journal Year: 2025, Volume and Issue: 3(1)

Published: May 13, 2025

Object knowledge is bound together in semantic networks that can be spatially represented. How these representations shape and are turn shaped by learning remains unclear. Here, we directly examined how object similarity impact implicit of feature dimensions learning, turn, influences representations. In a pre-experiment, 237 adult participants arranged object-pictures spatial arena, revealing relatedness everyday objects across categories: activity, fashion, foods. The subsequent experiment assessed whether relationships played role implicitly specific features separate participant group (N = 82). Participants inferred the meanings two pseudo-words through feedback. Using computational modeling, tested various strategies established was guided quantified pre-experiment. Post-learning arrangements reflected as well learned feature. We show guide reshapes existing

Language: Английский

Citations

0
Editorial: What is computational psychopathology, and why do we need it? DOI
Paolo Ossola, Alexandra C. Pike

Neuroscience & Biobehavioral Reviews, Journal Year: 2023, Volume and Issue: 152, P. 105170 - 105170

Published: April 17, 2023

Language: Английский

Citations

3
Individual differences in autism-like traits are associated with reduced goal emulation in a computational model of observational learning DOI Open Access
Qianying Wu, Sarah Soyeon Oh, Reza Tadayonnejad

et al.

Published: Oct. 23, 2023

One's ability to infer the goals and intentions of others is crucial for social interactions, such capabilities are broadly distributed across individuals. Autism-like traits (i.e., associated with autism spectrum disorder (ASD)) have been reduced inference, yet underlying computational principles cognitive processes not well characterized. Here we tackle this problem by investigating inference during learning through modeling in two large cross-sectional samples adult participants from general population (N1=943, N2=352). were extracted isolated other symptom dimensions a factor analysis Social Responsiveness Scale. Participants completed an observational task that allowed quantifying tradeoff between strategies: imitation (repeat observed partner’s most recent action) emulation (infer goal). specifically (but imitation), revealing difficulties goal inference. This association held even when controlling model parameters (e.g., decision noise, heuristics), was related but anxiety. The findings, replicated additional sample, provide powerfully specific mechanistic hypothesis challenges ASD, employing psychiatry approach could be applied disorders.

Language: Английский

Citations

2
Commentary: Special Issue on Interpersonal Trust DOI
John F. Clarkin

Journal of Personality Disorders, Journal Year: 2024, Volume and Issue: 38(1), P. 1 - 9

Published: Feb. 1, 2024

This commentary reviews the Journal of Personality Disorders special issue “Interpersonal Trust and Borderline Disorder: Insights From Clinical Practice Research,” published in Volume 37, Number 5, October 2023.

Language: Английский

Citations

0
Feeling close to others? Social cognitive mechanisms of intimacy in personality disorders DOI Creative Commons
Chiara De Panfilis, Zsolt Unoka, Stefanie Lis

et al.

Borderline Personality Disorder and Emotion Dysregulation, Journal Year: 2024, Volume and Issue: 11(1)

Published: Oct. 31, 2024

Language: Английский

Citations

0
Feature learning both shapes and is shaped by spatial object-similarity representations DOI Open Access
Jonathan Doyon, Sarah Shomstein, Gabriela Rosenblau

et al.

Published: July 20, 2023

Our knowledge of objects is bound together in semantic networks that can be spatially represented and reduced to simple binary category memberships or expanded multi-dimensional feature maps. How these representations shape are turn shaped by learning remains unclear. Here, we examined how object similarity influence implicit a dimension alters this representation. In Experiment 1, establish the spatial representation everyday belonging three discrete categories: activity, fashion, foods with various subcategories. Participants (N=287) arranged subsets 120 object-pictures using multi arrangement task (MAT). Their revealed configuration broadly reflected predefined (sub)categories. 2, investigated whether from 1 were applied when implicitly about specific features altered representations. A separate group participants (N=87) asked rate much two pseudo-words (‘ation’ ‘soaf’) subset 1. Unbeknown participants, meant either colorful large. Despite items not being repeated, inferred meaning through trial-by-trial feedback as evidenced significant reductions prediction errors over time both large conditions. relied on reinforcement model scaled fine granularity item-level relationships established MAT deduce nonwords question. Finally, question participants’ configurations post-learning 2.Overall, our results point organization item similarity, its employment during reorganization result learning. This carryover longer-term elucidates mechanism integrate new concepts into existing

Language: Английский

Citations

0