Pawan Sinha - Academia.edu (original) (raw)

Papers by Pawan Sinha

Neural Information Processing Systems, Jan 3, 2001

Neuropsychologia, Dec 1, 2011

Public Health, May 1, 2017

Journal of Autism and Developmental Disorders

Some theories have proposed that autistic individuals have difficulty learning predictive relatio... more Some theories have proposed that autistic individuals have difficulty learning predictive relationships. We tested this hypothesis using a serial reaction time task in which participants learned to predict the locations of a repeating sequence of target locations. We conducted a large-sample online study with 61 autistic and 71 neurotypical adults. The autistic group had slower overall reaction times, but demonstrated sequence-specific learning equivalent to the neurotypical group, consistent with other findings of typical procedural memory in autism. The neurotypical group, however, made significantly more prediction-related errors early in the experiment when the stimuli changed from repeated sequences to random locations, suggesting certain limited behavioural differences in the learning or utilization of predictive relationships for autistic adults.

Recent results suggest that autistic individuals find it challenging to temporally coordinate the... more Recent results suggest that autistic individuals find it challenging to temporally coordinate their actions with predictable external cues, as indicated, for instance, by lower accuracy in synchronizing finger taps to an auditory metronome compared with their non-autistic peers. However, it is not yet clear whether these difficulties are driven primarily by motor or perceptual impairments. We recruited autistic and non-autistic participants for an online study which tested both finger tapping synchronization and continuation as well as purely perceptual (non-motoric) rhythmic timing. We fractionated each participant’s synchronization results into several individual-specific parameters representing error correction, motor noise, and internal time-keeper noise, and also investigated error-correcting responses to small timing perturbations in metronome timing. Contrary to previous work, we did not find strong evidence for reduced tapping error correction. However, we found compelling e...

arXiv (Cornell University), Oct 29, 2021

arXiv (Cornell University), Jul 30, 2022

In the Dot task, children and adults involuntarily compute an avatar’s visual perspective, which ... more In the Dot task, children and adults involuntarily compute an avatar’s visual perspective, which has been interpreted as automatic Theory of Mind. We conducted three experiments in India, testing newly sighted children (N=5; all girls), neurotypical children (ages 5-10; N=90; 38 girls) and adults (N=30; 18 women) in a highly simplified version of the Dot task. No evidence of automatic perspective-taking was observed, although all groups revealed perspective-taking costs. A newly sighted child and the youngest children in our sample also showed an egocentric bias, which disappeared by age 10. Responding to recent work on what Theory of Mind tasks actually measure, we conclude that the standard Dot task relies so heavily on Executive Control that the alleged evidence of automatic Theory of Mind might simply reveal perspective switching costs.

Datasets created and used in the paper "To Which Out-Of-Distribution Object Orientations Are... more Datasets created and used in the paper "To Which Out-Of-Distribution Object Orientations Are DNNs Capable of Generalizing?" https://arxiv.org/pdf/2109.13445.pdf

2019 Computing in Cardiology Conference (CinC), 2019

Autism Research, 2021

According to a recent influential proposal, several phenotypic features of autism spectrum disord... more According to a recent influential proposal, several phenotypic features of autism spectrum disorder (ASD) may be accounted for by differences in predictive skills between individuals with ASD and neurotypical individuals. In this systematic review, we describe results from 47 studies that have empirically tested this hypothesis. We assess the results based on two observable aspects of prediction: learning a pairing between an antecedent and a consequence and responding to an antecedent in a predictive manner. Taken together, these studies suggest distinct differences in both predictive learning and predictive response. Studies documenting differences in learning predictive pairings indicate challenges in detecting such relationships especially when predictive features of an antecedent have low salience or consistency, and studies showing differences in habituation and perceptual adaptation suggest low‐level predictive processing differences in ASD. These challenges may account for t...