The visual representation of 3D orientation in macaque areas STPp and VPS

The Journal of Physiology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

Abstract In the current study, we investigated neural mechanisms underlying representation of three‐dimensional (3D) surface orientation within posterior portion superior temporal polysensory area (STPp) and visual Sylvian (VPS) in macaque brain. Both areas are known for their integration vestibular signals, which crucial stability spatial perception. However, it remains unclear how exactly these represent 3D surfaces. To tackle this question, used random dot stereograms (RDS) to present planar stimuli defined by slant tilt, with depth via binocular disparity. Through method, examined STPp VPS encode information. Our results suggest that both regions surfaces, interactions among parameters influencing responses. Additionally, motion cues affect perception orientation. consistently encoded plane information regardless cue, whereas responses showed less stability. These findings shed light on distinct processing different cortical areas, offering insights into basis image Key points can Slant is independently from tilt disparity areas. TDD neurons shift preferences based maintains stable encoding under conditions, while shows changes preferences.

Language: Английский

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Motor and vestibular signals in the visual cortex permit the separation of self versus externally generated visual motion

Cell, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Does the visibility of destination matter more than distance in human navigation? A pilot virtual reality study

Architectural Science Review, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 10

Published: March 11, 2025

Language: Английский

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Visuo-vestibular integration for self-motion: human cortical area V6 prefers forward and congruent stimuli

Experimental Brain Research, Journal Year: 2025, Volume and Issue: 243(6)

Published: May 23, 2025

Language: Английский

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Disrupted Rotational Perception During Simultaneous Stimulation of Rotation and Inertia

The Cerebellum, Journal Year: 2024, Volume and Issue: 23(5), P. 2003 - 2011

Published: May 3, 2024

Language: Английский

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Building egocentric models of local space from retinal input

Current Biology, Journal Year: 2024, Volume and Issue: 34(23), P. R1185 - R1202

Published: Dec. 1, 2024

Language: Английский

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Vestibular-derived internal models in active self-motion estimation

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

Published: April 17, 2024

Abstract Self-motion estimation is thought to depend on sensory information as well predictions derived from motor feedback. In driving, the vestibular afference can in principle be predicted based steering commands if an accurate internal model of dynamics available. Here, we used a closed-loop experiment examine whether participants build such dynamics. Participants steered motion platform which they were seated align their body with memorized visual target. We varied gain between wheel angle and velocity across trials three different ways: unpredictable (white noise), moderately predictable (random walk), or highly (constant gain). examined took across-trial predictability into account control (internal hypothesis), simply integrated feedback over time estimate travelled distance (path integration hypothesis). Results trial series regression analysis show that previous more when it followed random walk than unpredictably trials. Furthermore, interleaved large jump gain, made fast corrective responses, irrespective predictability, suggesting also rely These findings suggest brain construct predict reafference driving self-motion estimation.

Language: Английский

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Does the visibility of destination matter for navigation?

Published: May 8, 2024

Architects have long debated whether visual contact or Euclidean distance is more crucial for navigational decisions in large spaces, such as hospitals. In literature on navigation, emphasis has traditionally been landmarks, assuming their value lies familiarity with the built environment and constructed cognitive map. Individuals' subjective experiences, surroundings, personal preferences, even cultural background, can all an impact how they move through space. However, it remains unknown what spatial parameters alter decision. The study aims to assess visibility holds greater importance decisions, building hypotheses from previous work. Using Virtual Reality, we performed a navigation task uniform, maze-like environment, where participants located two spheres We find that predominantly base rather than visibility, favoring shorter distances when both visible invisible destinations are presented. Our findings challenge existing studies, revealing new avenue understanding interplay between layout, embodied self, processes. divergence prior research highlights necessity nuanced examination of configurations active, experience shaping human cognition.

Language: Английский

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Hearing, balance, and imaging assessment in adolescent Menière's disease: A retrospective analysis

Laryngoscope Investigative Otolaryngology, Journal Year: 2024, Volume and Issue: 9(4)

Published: Aug. 1, 2024

To retrospectively analyze clinical features in adolescent Menière's disease (MD).

Language: Английский

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Integrated Ising Model with global inhibition for decision making

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

Published: Nov. 19, 2024

Humans and other organisms make decisions choosing between different options, with the aim to maximize reward minimize cost. The main theoretical framework for modeling decision-making process has been based on highly successful drift-diffusion model, which is a simple tool explaining many aspects of this process. However, new observations challenge model. Recently, it was found that inhibitory tone increases during high cognitive load situations uncertainty, but origin phenomenon not understood. Motivated by observation, we extend recently developed model decision making while animals move towards targets in real space. We introduce an integrated Ising-type includes global inhibition, use explore its role decision-making. This can explain how brain may utilize inhibition improve accuracy. Compared experimental results, suggests regime brain's activity proximity critical transition line ordered disordered. Within region near advantageous property enabling significant decrease error small increase also exhibits unique properties respect learning memory decay.

Language: Английский

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