Perception and propagation of activity through the cortical hierarchy is determined by neural variability

JM Rowland, TL van der Plas, M Loidolt, RM Lees… - bioRxiv, 2021 - biorxiv.org
The brains of higher organisms are composed of anatomically and functionally distinct
regions performing specialised tasks; but regions do not operate in isolation. Orchestration …

Propagation of activity through the cortical hierarchy and perception are determined by neural variability

JM Rowland, TL van der Plas, M Loidolt, RM Lees… - Nature …, 2023 - nature.com
Brains are composed of anatomically and functionally distinct regions performing
specialized tasks, but regions do not operate in isolation. Orchestration of complex …

The relation of ongoing brain activity, evoked neural responses, and cognition

S Sadaghiani, G Hesselmann, KJ Friston… - Frontiers in systems …, 2010 - frontiersin.org
Ongoing brain activity has been observed since the earliest neurophysiological recordings
and is found over a wide range of temporal and spatial scales. It is characterized by …

Task-evoked activity quenches neural correlations and variability across cortical areas

T Ito, SL Brincat, M Siegel, RD Mill, BJ He… - PLoS computational …, 2020 - journals.plos.org
Many large-scale functional connectivity studies have emphasized the importance of
communication through increased inter-region correlations during task states. In contrast …

A dynamical systems framework to uncover the drivers of large-scale cortical activity

A Ashourvan, S Pequito, M Bertolero, JZ Kim… - bioRxiv, 2019 - biorxiv.org
ABSTRACT A fundamental challenge in neuroscience is to uncover the principles governing
complex interactions between the brain and its external environment. Over the past few …

Learning and attention reveal a general relationship between neuronal variability and perception

AM Ni, DA Ruff, JJ Alberts, J Symmonds, MR Cohen - bioRxiv, 2017 - biorxiv.org
The trial-to-trial response variability that is shared between pairs of neurons (termed spike
count correlations or r SC) has been the subject of many recent studies largely because it …

Feedforward and feedback interactions between visual cortical areas use different population activity patterns

JD Semedo, AI Jasper, A Zandvakili, A Krishna… - Nature …, 2022 - nature.com
Brain function relies on the coordination of activity across multiple, recurrently connected
brain areas. For instance, sensory information encoded in early sensory areas is relayed to …

Coupled oscillations orchestrate selective information transmission in visual cortex

MB Khamechian, MR Daliri, S Treue, M Esghaei - PNAS nexus, 2024 - academic.oup.com
Performing visually guided behavior involves flexible routing of sensory information towards
associative areas. We hypothesize that in visual cortical areas, this routing is shaped by a …

Distinct brain-wide presynaptic networks underlie the functional identity of individual cortical neurons

AR Inácio, KC Lam, Y Zhao, F Pereira, CR Gerfen… - bioRxiv, 2023 - biorxiv.org
Neuronal connections provide the scaffolding for neuronal function. Revealing the
connectivity of functionally identified individual neurons is necessary to understand how …

Similarity in evoked responses does not imply similarity in macroscopic network states across tasks

J Rasero, R Betzel, AI Sentis, TE Kraynak, PJ Gianaros… - BioRxiv, 2021 - biorxiv.org
There is an ongoing debate as to whether cognitive processes arise from a group of
functionally specialized brain modules (modularism) or as the result of distributed nonlinear …