Higher proneness to multisensory illusions is driven by reduced temporal sensitivity in people with high schizotypal traits

2018 ◽  
Vol 65 ◽  
pp. 263-270 ◽  
Author(s):  
Francesca Ferri ◽  
Agnese Venskus ◽  
Francesca Fotia ◽  
Jason Cooke ◽  
Vincenzo Romei
Keyword(s):  
Multisensory Illusions

scholarly journals Multisensory Illusions and the Temporal Binding Window

i-Perception ◽  
10.1068/ic903 ◽  
2011 ◽  
Vol 2 (8) ◽  
pp. 903-903
Author(s):  
Ryan A Stevenson ◽  
Raquel K Zemtsov ◽  
Mark T Wallace
Keyword(s):  
Temporal Binding ◽  
Temporal Binding Window ◽  
Multisensory Illusions

Cue Integration for Continuous and Categorical Dimensions by Synesthetes

2017 ◽  
Vol 30 (3-5) ◽  
pp. 207-234
Author(s):  
Kaitlyn R. Bankieris ◽  
Vikranth Rao Bejjanki ◽  
Richard N. Aslin
Keyword(s):  
Human Behavior ◽  
Multisensory Integration ◽  
Sensory Integration ◽  
Ideal Observer ◽  
Cue Integration ◽  
Sensory Cues ◽  
Integration Process ◽  
Integration Mechanisms ◽  
Multisensory Illusions

For synesthetes, sensory or cognitive stimuli induce the perception of an additional sensory or cognitive stimulus. Grapheme–color synesthetes, for instance, consciously and consistently experience particular colors (e.g., fluorescent pink) when perceiving letters (e.g.,u). As a phenomenon involving multiple stimuli within or across modalities, researchers have posited that synesthetes may integrate sensory cues differently than non-synesthetes. However, findings to date present mixed results concerning this hypothesis, with researchers reporting enhanced, depressed, or normal sensory integration for synesthetes. In this study wequantitativelyevaluated the multisensory integration process of synesthetes and non-synesthetes using Bayesian principles, rather than employing multisensory illusions, to make inferences about the sensory integration process. In two studies we investigated synesthetes’ sensory integration by comparing human behavior to that of an ideal observer. We found that synesthetes integrated cues for both continuous and categorical dimensions in a statistically optimal manner, matching the sensory integration behavior of controls. These findings suggest that synesthetes and controls utilize similar cue integration mechanisms, despite differences in how they perceive unimodal stimuli.

scholarly journals Analgesic effects of multisensory illusions in osteoarthritis

Rheumatology ◽  
2011 ◽  
Vol 50 (12) ◽  
pp. 2314-2315 ◽  
Author(s):  
C. Preston ◽  
R. Newport
Keyword(s):  
Analgesic Effects ◽  
Multisensory Illusions

How Long is Your Arm? Using Multisensory Illusions to Modify Body Image from the Third Person Perspective

Perception ◽  
10.1068/p7103 ◽  
2012 ◽  
Vol 41 (2) ◽  
pp. 247-249 ◽  
Author(s):  
Catherine Preston ◽  
Roger Newport
Keyword(s):  
Body Image ◽  
Subjective Experience ◽  
Body Representations ◽  
Normal Length ◽  
The Third ◽  
Person Perspective ◽  
Third Person ◽  
Third Person Perspective ◽  
The Third Person ◽  
Multisensory Illusions

Updating body representations from the 3rd person perspectives (3PP) seems to require viewing the real body, unlike when viewing from a 1st person perspective. Here, 3PP updating was investigated through induction of a physically impossible multisensory illusion in which participants viewed real-time 3PP video of themselves having their arm pulled until it stretched to twice its normal length. The illusion elicited the subjective experience that the participant's own arm had been stretched and caused an overestimation of reaching distance, although actual reaches were unaffected. Multisensory illusions from the 3PP can alter body image when applied to real bodies.

scholarly journals Metacognitive Awareness in the Sound-Induced Flash Illusion

2020 ◽  
Author(s):  
Callie E. Mims ◽  
Brian Odegaard
Keyword(s):  
Causal Structure ◽  
Metacognitive Awareness ◽  
Visual Signals ◽  
Perceptual Judgment ◽  
Sensory Signals ◽  
Confidence Judgments ◽  
Multisensory Information ◽  
Multisensory Illusions ◽  
Preliminary Support

In the sound-induced flash illusion, discrepant numbers of stimuli in the visual and auditory modalities are integrated to create illusory visual percepts. While this phenomenon has been extensively studied over the last two decades, relatively little is known about the role of metacognition in this illusion. Specifically, when incongruent audiovisual signals yield the same behavioral reports as conditions with congruent audiovisual signals, is confidence in the perceptual judgment the same across conditions? To probe this question, we conducted an experiment where 22 observers viewed from 1-4 flashes and 1-4 beeps on each trial, and reported three things: (1) the number of perceived flashes, (2) confidence in the judgment about the number of flashes, and (3) confidence in whether the number of beeps and flashes were the same or different. In our exploratory analyses, we paired conditions of incongruent and congruent audiovisual signals which produced the same report about the number of flashes. Results showed that in several condition pairs, confidence in the perceived number of flashes was higher for congruent audiovisual signals than incongruent audiovisual signals. For confidence judgments about whether the number of auditory and visual signals presented were the same or different, confidence ratings were similar for all condition pairs but one. These findings provide preliminary support for the hypothesis that metacognition may be able to index differences between multisensory illusions and congruent multisensory information, but (in most circumstances) may be unable to index differences in the underlying causal structure which produces the sensory signals.

scholarly journals A Continuous Illusion of Having a Sixth Finger

Perception ◽  
2020 ◽  
Vol 49 (8) ◽  
pp. 807-821
Author(s):  
Denise Cadete ◽  
Matthew R. Longo
Keyword(s):  
Personal Identity ◽  
Mental Representation ◽  
Tactile Stimulation ◽  
Sense Of Self ◽  
Body Part ◽  
Body Parts ◽  
Mirror Box ◽  
Illusory Perception ◽  
Extended Duration ◽  
Multisensory Illusions

Our body is central to our sense of self and personal identity, yet it can be manipulated in the laboratory in surprisingly easy ways. Several multisensory illusions have shown the flexibility of the mental representation of our bodies by inducing the illusion of owning an artificial body part or having a body part with altered features. Recently, new studies showed we can embody additional body parts such as a supernumerary finger. Newport et al. recently reported a novel six-finger illusion using conflicting visual and tactile signals induced with the mirror box to create the illusory perception of having a sixth finger for a brief moment. In this study, we aimed to replicate this result and to investigate whether the experience of embodiment of a sixth finger could be prolonged for an extended duration by applying continuous visual–tactile stimulation. Results showed that a continuous illusion of having a sixth finger can be clearly induced. This shows that the six-finger illusion does not reflect merely a momentary confusion due to conflicting multisensory signals but can reflect an enduring representation of a supernumerary finger.

scholarly journals The effect of multisensory illusions on pain and perceived burning sensations in patients with Burning Mouth Syndrome: A proof‐of‐concept study

2020 ◽  
Vol 49 (6) ◽  
pp. 505-513
Author(s):  
Amanda H. Phoon Nguyen ◽  
Ramesh Balasubramaniam ◽  
Valeria Bellan ◽  
Roger N. Newport ◽  
Tasha R. Stanton
Keyword(s):  
Burning Mouth Syndrome ◽  
Proof Of Concept ◽  
Concept Study ◽  
Burning Mouth ◽  
Multisensory Illusions
Sign in / Sign up

Export Citation Format

Share Document