The right posterior parietal cortex mediates spatial reorienting of attentional choice bias

A Sengupta, S Banerjee, S Ganesh, S Grover… - Nature …, 2024 - nature.com
Attention facilitates behavior by enhancing perceptual sensitivity (sensory processing) and
choice bias (decisional weighting) for attended information. Whether distinct neural …

Dissociable components of attention exhibit distinct neuronal signatures in primate visual cortex

AN Chandrasekaran, A Vermani, P Gupta… - Science …, 2024 - science.org
Attention can be deployed in multiple forms and facilitates behavior by influencing
perceptual sensitivity and choice bias. Attention is also associated with a myriad of changes …

Tracking momentary fluctuations in human attention with a cognitive brain-machine interface

AM Chinchani, S Paliwal, S Ganesh… - Communications …, 2022 - nature.com
Selective attention produces systematic effects on neural states. It is unclear whether,
conversely, momentary fluctuations in neural states have behavioral significance for …

Neuro-cognitive models of single-trial EEG measures describe latent effects of spatial attention during perceptual decision making

A Ghaderi-Kangavari, JA Rad, K Parand… - Journal of Mathematical …, 2022 - Elsevier
Visual perceptual decision-making involves multiple components including visual encoding,
attention, accumulation of evidence, and motor execution. Recent research suggests that …

A Midbrain Inspired Recurrent Neural Network Model for Robust Change Detection

Y Sawant, JN Kundu, VB Radhakrishnan… - Journal of …, 2022 - Soc Neuroscience
We present a biologically inspired recurrent neural network (RNN) that efficiently detects
changes in natural images. The model features sparse, topographic connectivity (st-RNN) …

Presaccadic attention does not facilitate the detection of changes in the visual field

P Gupta, D Sridharan - PLoS Biology, 2024 - journals.plos.org
Planning a rapid eye movement (saccade) changes how we perceive our visual world. Even
before we move the eyes visual discrimination sensitivity improves at the impending target of …

How spatial attention affects the decision process: looking through the lens of Bayesian hierarchical diffusion model & EEG analysis

A Ghaderi-Kangavari, K Parand… - Journal of Cognitive …, 2023 - Taylor & Francis
We explored the underlying latent process of spatial prioritisation in perceptual decision
processes, based on the drift-diffusion model, and subsequent nested model comparison …

Distinct neural bases of subcomponents of the attentional blink

S Halder, DV Raya, D Sridharan - bioRxiv, 2024 - biorxiv.org
The attentional blink reflects a ubiquitous bottleneck with selecting and processing the
second of two targets that occur in close temporal proximity. An extensive literature has …

Neural mechanisms of attention, not expectation, govern spatial selection by probabilistic cueing

S Sunder, K Rajendran, M Biswas, D Sridharan - bioRxiv, 2024 - biorxiv.org
Spatial probabilistic “Posner” cueing is widely employed in studies of endogenous spatial
attention. Such cueing guides attention by providing prior knowledge about the likely spatial …

A surprising lack of presaccadic benefits during visual change detection

P Gupta, D Sridharan - bioRxiv, 2023 - biorxiv.org
Even before the eyes move, visual sensitivity improves at the target of the planned eye
movement. Yet, it is unknown if such “presaccadic” benefits are merely sensory, or also …