Accumulation of inertial sensory information in the perception of whole body yaw rotation

Alessandro Nesti, Ksander De Winkel, Heinrich Bulthoff

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

While moving through the environment, our central nervous system accumulates sensory information over time to provide an estimate of our self-motion, allowing for completing crucial tasks such as maintaining balance. However, little is known on how the duration of the motion stimuli influences our performances in a self-motion discrimination task. Here we study the human ability to discriminate intensities of sinusoidal (0.5 Hz) self-rotations around the vertical axis (yaw) for four different stimulus durations (1, 2, 3 and 5 s) in darkness. In a typical trial, participants experienced two consecutive rotations of equal duration and different peak amplitude, and reported the one perceived as stronger. For each stimulus duration, we determined the smallest detectable change in stimulus intensity (differential threshold) for a reference velocity of 15 deg/s. Results indicate that differential thresholds decrease with stimulus duration and asymptotically converge to a constant, positive value. This suggests that the central nervous system accumulates sensory information on self-motion over time, resulting in improved discrimination performances. Observed trends in differential thresholds are consistent with predictions based on a drift diffusion model with leaky integration of sensory evidence.

Original languageEnglish
Article numbere0170497
JournalPLoS One
Volume12
Issue number1
DOIs
Publication statusPublished - 2017 Jan 1
Externally publishedYes

Fingerprint

Yaws
Differential Threshold
Neurology
duration
Central Nervous System
central nervous system
Aptitude
Darkness
prediction
Discrimination (Psychology)

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Accumulation of inertial sensory information in the perception of whole body yaw rotation. / Nesti, Alessandro; De Winkel, Ksander; Bulthoff, Heinrich.

In: PLoS One, Vol. 12, No. 1, e0170497, 01.01.2017.

Research output: Contribution to journalArticle

@article{d01304e2a3404a19893a311409576aa1,
title = "Accumulation of inertial sensory information in the perception of whole body yaw rotation",
abstract = "While moving through the environment, our central nervous system accumulates sensory information over time to provide an estimate of our self-motion, allowing for completing crucial tasks such as maintaining balance. However, little is known on how the duration of the motion stimuli influences our performances in a self-motion discrimination task. Here we study the human ability to discriminate intensities of sinusoidal (0.5 Hz) self-rotations around the vertical axis (yaw) for four different stimulus durations (1, 2, 3 and 5 s) in darkness. In a typical trial, participants experienced two consecutive rotations of equal duration and different peak amplitude, and reported the one perceived as stronger. For each stimulus duration, we determined the smallest detectable change in stimulus intensity (differential threshold) for a reference velocity of 15 deg/s. Results indicate that differential thresholds decrease with stimulus duration and asymptotically converge to a constant, positive value. This suggests that the central nervous system accumulates sensory information on self-motion over time, resulting in improved discrimination performances. Observed trends in differential thresholds are consistent with predictions based on a drift diffusion model with leaky integration of sensory evidence.",
author = "Alessandro Nesti and {De Winkel}, Ksander and Heinrich Bulthoff",
year = "2017",
month = "1",
day = "1",
doi = "10.1371/journal.pone.0170497",
language = "English",
volume = "12",
journal = "PLoS One",
issn = "1932-6203",
publisher = "Public Library of Science",
number = "1",

}

TY - JOUR

T1 - Accumulation of inertial sensory information in the perception of whole body yaw rotation

AU - Nesti, Alessandro

AU - De Winkel, Ksander

AU - Bulthoff, Heinrich

PY - 2017/1/1

Y1 - 2017/1/1

N2 - While moving through the environment, our central nervous system accumulates sensory information over time to provide an estimate of our self-motion, allowing for completing crucial tasks such as maintaining balance. However, little is known on how the duration of the motion stimuli influences our performances in a self-motion discrimination task. Here we study the human ability to discriminate intensities of sinusoidal (0.5 Hz) self-rotations around the vertical axis (yaw) for four different stimulus durations (1, 2, 3 and 5 s) in darkness. In a typical trial, participants experienced two consecutive rotations of equal duration and different peak amplitude, and reported the one perceived as stronger. For each stimulus duration, we determined the smallest detectable change in stimulus intensity (differential threshold) for a reference velocity of 15 deg/s. Results indicate that differential thresholds decrease with stimulus duration and asymptotically converge to a constant, positive value. This suggests that the central nervous system accumulates sensory information on self-motion over time, resulting in improved discrimination performances. Observed trends in differential thresholds are consistent with predictions based on a drift diffusion model with leaky integration of sensory evidence.

AB - While moving through the environment, our central nervous system accumulates sensory information over time to provide an estimate of our self-motion, allowing for completing crucial tasks such as maintaining balance. However, little is known on how the duration of the motion stimuli influences our performances in a self-motion discrimination task. Here we study the human ability to discriminate intensities of sinusoidal (0.5 Hz) self-rotations around the vertical axis (yaw) for four different stimulus durations (1, 2, 3 and 5 s) in darkness. In a typical trial, participants experienced two consecutive rotations of equal duration and different peak amplitude, and reported the one perceived as stronger. For each stimulus duration, we determined the smallest detectable change in stimulus intensity (differential threshold) for a reference velocity of 15 deg/s. Results indicate that differential thresholds decrease with stimulus duration and asymptotically converge to a constant, positive value. This suggests that the central nervous system accumulates sensory information on self-motion over time, resulting in improved discrimination performances. Observed trends in differential thresholds are consistent with predictions based on a drift diffusion model with leaky integration of sensory evidence.

UR - http://www.scopus.com/inward/record.url?scp=85010755890&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85010755890&partnerID=8YFLogxK

U2 - 10.1371/journal.pone.0170497

DO - 10.1371/journal.pone.0170497

M3 - Article

C2 - 28125681

AN - SCOPUS:85010755890

VL - 12

JO - PLoS One

JF - PLoS One

SN - 1932-6203

IS - 1

M1 - e0170497

ER -