scholarly journals Auditory Localisation Biases Increase with Sensory Uncertainty

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Sara E. Garcia ◽  
Pete R. Jones ◽  
Gary S. Rubin ◽  
Marko Nardini
Keyword(s):  
Sensory Uncertainty ◽  
Auditory Localisation

scholarly journals Using the past to estimate sensory uncertainty

2019 ◽  
Author(s):  
Ulrik Beierholm ◽  
Tim Rohe ◽  
Ambra Ferrari ◽  
Oliver Stegle ◽  
Uta Noppeney
Keyword(s):  
Temporal Dynamics ◽  
Visual Signals ◽  
Perceptual Inference ◽  
Reliability Estimates ◽  
Uncertainty Estimates ◽  
Classical Models ◽  
Past Experiences ◽  
Combine Information ◽  
Sensory Uncertainty ◽  
The Brain

AbstractTo form the most reliable percept of the environment, the brain needs to represent sensory uncertainty. Current theories of perceptual inference assume that the brain computes sensory uncertainty instantaneously and independently for each stimulus.In a series of psychophysics experiments human observers localized auditory signals that were presented in synchrony with spatially disparate visual signals. Critically, the visual noise changed dynamically over time with or without intermittent jumps. Our results show that observers integrate audiovisual inputs weighted by sensory reliability estimates that combine information from past and current signals as predicted by an optimal Bayesian learner or approximate strategies of exponential discountingOur results challenge classical models of perceptual inference where sensory uncertainty estimates depend only on the current stimulus. They demonstrate that the brain capitalizes on the temporal dynamics of the external world and estimates sensory uncertainty by combining past experiences with new incoming sensory signals.

scholarly journals Sensory uncertainty decoded from visual cortex predicts behavior

2015 ◽  
Vol 18 (12) ◽  
pp. 1728-1730 ◽  
Author(s):  
Ruben S van Bergen ◽  
Wei Ji Ma ◽  
Michael S Pratte ◽  
Janneke F M Jehee
Keyword(s):  
Visual Cortex ◽  
Sensory Uncertainty

scholarly journals Human confidence judgments reflect reliability-based hierarchical integration of contextual information

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Philipp Schustek ◽  
Alexandre Hyafil ◽  
Rubén Moreno-Bote
Keyword(s):  
Sample Size ◽  
Latent Variables ◽  
Message Passing ◽  
Contextual Information ◽  
Probabilistic Inference ◽  
Contextual Variable ◽  
Hierarchical Levels ◽  
Sensory Evidence ◽  
Sensory Uncertainty ◽  
Simple Heuristics

AbstractOur immediate observations must be supplemented with contextual information to resolve ambiguities. However, the context is often ambiguous too, and thus it should be inferred itself to guide behavior. Here, we introduce a novel hierarchical task (airplane task) in which participants should infer a higher-level, contextual variable to inform probabilistic inference about a hidden dependent variable at a lower level. By controlling the reliability of past sensory evidence through varying the sample size of the observations, we find that humans estimate the reliability of the context and combine it with current sensory uncertainty to inform their confidence reports. Behavior closely follows inference by probabilistic message passing between latent variables across hierarchical state representations. Commonly reported inferential fallacies, such as sample size insensitivity, are not present, and neither did participants appear to rely on simple heuristics. Our results reveal uncertainty-sensitive integration of information at different hierarchical levels and temporal scales.

Human Auditory Localisation in a Distorted Environment: Water

2009 ◽  
Vol 95 (1) ◽  
pp. 128-141 ◽  
Author(s):  
Sophie Savel ◽  
Carolyn Drake ◽  
Guy Rabau
Keyword(s):  
Auditory Localisation

Response to sensory uncertainty in Parkinson’s disease: a marker of cerebellar dysfunction?

2010 ◽  
Vol 33 (2) ◽  
pp. 298-305 ◽  
Author(s):  
James K. R. Stevenson ◽  
Meeko M. K. Oishi ◽  
Sara Farajian ◽  
Edmond Cretu ◽  
Edna Ty ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Cerebellar Dysfunction ◽  
Sensory Uncertainty
Sign in / Sign up

Export Citation Format

Share Document