The neural link between stimulus duration and spatial location in the human visual hierarchy DOI Creative Commons
Valeria Centanino, Gianfranco Fortunato, Domenica Bueti

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Dec. 27, 2024

Integrating spatial and temporal information is essential for our sensory experience. While psychophysical evidence suggests dependencies in duration perception, few studies have directly tested the neural link between processing. Using ultra-high-field functional MRI neuronal-based modeling, we investigated how where processing representation of a visual stimulus linked to that its location. Our results show transition coding: from monotonic spatially-dependent early cortex unimodal spatially-invariant frontal cortex. Along dorsal stream, particularly intraparietal sulcus (IPS), neuronal populations common selective responses both information. In IPS, topographic organizations are also linked, although maps smaller, less clustered, more variable across participants. These findings help identify mechanisms underlying human perception characterize time space processing, highlighting importance their interactions shaping brain responses. Common organizational principles not fully understood. This study shows coding brief events transforms along cortical hierarchy, interact through representations.

Language: Английский

Simultaneous cortical, subcortical, and brainstem mapping of sensory activation DOI Creative Commons
Neha Reddy, Rebecca G. Clements, J.C. Brooks

et al.

Cerebral Cortex, Journal Year: 2024, Volume and Issue: 34(6)

Published: June 1, 2024

Abstract Nonpainful tactile sensory stimuli are processed in the cortex, subcortex, and brainstem. Recent functional magnetic resonance imaging studies have highlighted value of whole-brain, systems-level investigation for examining processing. However, whole-brain uncommon, part due to challenges with signal noise when studying Furthermore, differentiation small brainstem structures such as cuneate gracile nuclei necessitates high-resolution imaging. To address this gap investigation, we employed a multi-echo acquisition at 3T independent component analysis denoising brainstem-specific modeling enable detection activation across entire system. In healthy participants, examined patterns activity response nonpainful brushing right hand, left foot (n = 10 per location), found expected lateralization, distinct cortical subcortical responses upper lower limb stimulation. At level, differentiated adjacent nuclei, corresponding hand stimulation respectively. Our findings demonstrate that simultaneous cortical, subcortical, mapping could be key tool understand system both individuals clinical cohorts deficits.

Language: Английский

Citations

3
“Decoding Ambiguity”: Asian Elephants’ (Elephas maximus) use previous experiences and sensory information to make decisions regarding ambiguity DOI Creative Commons
Sagarika Phalke, Cécile Sarabian,

Alan H. Hughes

et al.

Applied Animal Behaviour Science, Journal Year: 2025, Volume and Issue: unknown, P. 106525 - 106525

Published: Jan. 1, 2025

Language: Английский

Citations

0
Organic Photoelectrochemical Multisensory Integration DOI
Yu‐Ting Huang, Zheng Li, Yuan Cheng

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Abstract Neuromorphic perception capable of multisensory integration (MSI) in electrolytes is important but remains challenging. Here, the aqueous implementation artificial MSI reported based on newly emerged organic photoelectrochemical transistor (OPECT) by representative visual (light)‐gustatory (sour) perception. Under co‐modulation light and H + /OH − , synaptic plasticity several typical characteristics are mimicked, including “super‐additive response,” “inverse effectiveness effect” “temporal congruency.” To demonstrate its potential usage, different types associative learning corresponding reflex activities further emulated. The chemical system also utilized to control salivation a closed loop real‐time perception, processing, integration, actuation emulate biological responses toward external stimuli. In contrast previous solid‐state operations, this work offers new strategy for developing neuromorphic environments that analogous those biology.

Language: Английский

Citations

0
Rodent senses: Whisking for sound not just touch DOI
Joshua C. Brumberg

Current Biology, Journal Year: 2025, Volume and Issue: 35(6), P. R231 - R232

Published: March 1, 2025

Language: Английский

Citations

0
Vision training for designers DOI

Tiziana Proietti,

Sergei Gepshtein

Architectural Science Review, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 15

Published: April 19, 2025

Citations

0
Cronología de la investigación sobre la dinámica cerebral de Justo Gonzalo DOI
Alberto García‐Molina, Isabel Gonzalo

Revista de Neurología, Journal Year: 2024, Volume and Issue: 78(07), P. 199 - 199

Published: Jan. 1, 2024

The Spanish neuroscientist Justo Gonzalo y Rodriguez-Leal (1910-1986) investigated the functional organisation of cerebral cortex over more than four decades. His findings led him to formulate a neurophysiological theory based on laws nervous excitability, which he called brain dynamics. This paper presents in chronological order how main ideas it is arose.

Language: Английский

Citations

2
Peripersonal space: why so last-second? DOI
Frédérique de Vignemont, Alessandro Farné

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1911)

Published: Aug. 19, 2024

A vast range of neurophysiological, neuropsychological and behavioural results in monkeys humans have shown that the immediate surroundings body, also known as peripersonal space (PPS), are processed a unique way. Three roles been ascribed to PPS mechanisms: react threats, avoid obstacles act on objects. However, many circumstances, one does not wait for objects or agents enter plan these behaviours. Typically, has more chances survive if starts running away from lion when sees it distance than is few steps away. makes sense shortsighted creatures but we such creatures. The crucial question thus twofold: (i) why adaptive processes triggered only at last second even milliseconds? And (ii) what their exact contribution, especially defensive navigational behaviours? Here, propose mechanisms correspond B, useful unpredictable situations other anticipatory failed. Furthermore, argue there energetic, cognitive costs mechanisms, which explain this B second. This article part theme issue ‘Minds movement: embodied cognition age artificial intelligence’.

Language: Английский

Citations

2
Artificial and biological supports are different for pea plants DOI Creative Commons

Bianca Bonato,

Valentina Simonetti, Silvia Guerra

et al.

Plant Signaling & Behavior, Journal Year: 2024, Volume and Issue: 19(1)

Published: June 5, 2024

Previous studies on the kinematics of pea plants' ascent and attach behavior have demonstrated that signature their movement varies depending kind support. So far, these been confined to artificial supports (e.g. wooden sticks). Little is known regarding conditions under which plants could rely biological neighboring plants) for climbing toward light. In this study, we capitalize 3D kinematic analysis ascertain whether scale differently they aim or Results suggest support determines a smoother more accurate than elicited by one. These results shed light ability detect classify properties objects implement plan attuned very nature We contend such differences depend augmented multisensory experience

Language: Английский

Citations

1
How the brain controls decision making in a multisensory world DOI Creative Commons
Christopher R. Fetsch, Uta Noppeney

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 378(1886)

Published: Aug. 7, 2023

Sensory systems evolved to provide the organism with information about environment guide adaptive behaviour. Neuroscientists and psychologists have traditionally considered each sense independently, a legacy of Aristotle natural consequence their distinct physical anatomical bases. However, from point view organism, perception sensorimotor behaviour are fundamentally multi-modal; after all, modality provides complementary same world. Classic studies revealed much where how sensory signals combined improve performance, but these tended treat multisensory integration as static, passive, bottom-up process. It has become increasingly clear this approach falls short, ignoring interplay between action, temporal dynamics decision process many ways by which brain can exert top-down control integration. The goal issue is highlight recent advances on higher order aspects processing, together constitute mainstay our understanding complex, its neural basis. This article part theme ‘Decision processes in perception’.

Language: Английский

Citations

3
The link between space and time along the human cortical hierarchy DOI Creative Commons
Valeria Centanino, Gianfranco Fortunato, Domenica Bueti

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: April 16, 2024

Abstract In humans, very few studies have directly tested the link between neural coding of time and space. Here we combined ultra-high field functional magnetic resonance imaging with neuronal-based modeling to investigate how where processing representation a visual stimulus duration is linked that its spatial location. Results show transition in response duration: from monotonic spatially-dependent early cortex, unimodal spatially-invariant frontal cortex. This begins extrastriate areas V3AB, it fully displays intraparietal sulcus (IPS), both responses are present neuronal populations selective either space, or both. IPS, space topographies specific relationship, although along cortical hierarchy maps compared ones smaller size, less clustered more variable across participants. These results help identify mechanisms through which humans perceive object location precisely characterize processing, highlighting importance space-time interactions shaping brain responses.

Language: Английский

Citations

0