2014
DOI: 10.1101/sqb.2014.79.024638
|View full text |Cite
|
Sign up to set email alerts
|

How Optic Flow and Inertial Cues Improve Motion Perception

Abstract: Estimating our egocentric heading direction is an important component of navigation. Recent studies have explored how inertial cues from the vestibular system and optic flow signals from the visual system interact to improve perceptual precision and accuracy. Heading precision is improved through multisensory integration, whereas heading accuracy is maintained through multisensory calibration mechanisms. Neural correlates of these behaviors are found in a large interconnected cortical network, although the spe… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
7
0

Year Published

2017
2017
2021
2021

Publication Types

Select...
5
2

Relationship

0
7

Authors

Journals

citations
Cited by 11 publications
(7 citation statements)
references
References 97 publications
(103 reference statements)
0
7
0
Order By: Relevance
“…In MEC, speed cells retain their general coding features in complete darkness, but firing rates and the slopes of linear fits between firing rate and running speed decrease 16 , suggesting that visual inputs calibrate their response features. Visual inputs could provide a measure of self-motion in the form of optic flow 20 , which must be combined with other multisensory signals to generate a unified self-motion percept 21 . However, the influence of optic flow on MEC speed cells has not been directly measured.…”
Section: Main Textmentioning
confidence: 99%
“…In MEC, speed cells retain their general coding features in complete darkness, but firing rates and the slopes of linear fits between firing rate and running speed decrease 16 , suggesting that visual inputs calibrate their response features. Visual inputs could provide a measure of self-motion in the form of optic flow 20 , which must be combined with other multisensory signals to generate a unified self-motion percept 21 . However, the influence of optic flow on MEC speed cells has not been directly measured.…”
Section: Main Textmentioning
confidence: 99%
“…Likewise, the role of attention shift after the first perturbation cycle was not considered [ 112 ]. Our experimental approach does not allow to address all these issues, given the multifaceted patterns of brain areas activation following adaptation to postural perturbations [ 54 ], the presence of a condition of predictable continuous perturbations [ 54 ], and the amazing complexity of theories on this topic [ 14 , 113 116 ]. As a consequence, our model used to calculate the time constant could have been too simplistic, or biased, in particular when the data variance around the population mean was high and the changes in amplitude of the steady state PP segments’ displacement were unimportant compared to the initial cycles.…”
Section: Limitationsmentioning
confidence: 99%
“…Higher precision reflects more reliable discrimination by the observer. Precision is a measure of variance in responses corresponding to the steepness of the fitted sigmoid, calculated as the 'sigma' of the cumulative Gaussian fit of the psychometric function [1]. "Bias" in this sense is the bias of the percept compared to the true stimulus value.…”
Section: Discussionmentioning
confidence: 99%
“…In studies of perceptual decision-making, two independent features can be disentangled, by fitting a psychometric function to behavioural data from two-alternative forced choice (2AFC) paradigms [1]: bias (i.e. how biased perception of a stimulus is in relation to its actual properties) and precision (i.e.…”
Section: Introductionmentioning
confidence: 99%