Investigating the effect of a transparent barrier on the crossmodal congruency effect

2004 ◽  
Vol 161 (1) ◽  
pp. 62-71 ◽  
Author(s):  
Norimichi Kitagawa ◽  
Charles Spence
Keyword(s):  
Congruency Effect ◽  
Transparent Barrier ◽  
Crossmodal Congruency Effect ◽  
Crossmodal Congruency

scholarly journals Crossmodal congruency effect scores decrease with repeat test exposure

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6976 ◽  
Author(s):  
Daniel Blustein ◽  
Satinder Gill ◽  
Adam Wilson ◽  
Jon Sensinger
Keyword(s):  
Exposure Time ◽  
Congruency Effect ◽  
Learning Effect ◽  
Body Schema ◽  
Mitigation Strategies ◽  
Clinical Settings ◽  
Exposure Sessions ◽  
The Impact ◽  
Crossmodal Congruency Effect ◽  
Crossmodal Congruency

The incorporation of feedback into a person’s body schema is well established. The crossmodal congruency task (CCT) is used to objectively quantify incorporation without being susceptible to experimenter biases. This visual-tactile interference task is used to calculate the crossmodal congruency effect (CCE) score as a difference in response time between incongruent and congruent trials. Here we show that this metric is susceptible to a learning effect that causes attenuation of the CCE score due to repeated task exposure sessions. We demonstrate that this learning effect is persistent, even after a 6 month hiatus in testing. Two mitigation strategies are proposed: 1. Only use CCE scores that are taken after learning has stabilized, or 2. Use a modified CCT protocol that decreases the task exposure time. We show that the modified and shortened CCT protocol, which may be required to meet time or logistical constraints in laboratory or clinical settings, reduced the impact of the learning effect on CCT results. Importantly, the CCE scores from the modified protocol were not significantly more variable than results obtained with the original protocol. This study highlights the importance of considering exposure time to the CCT when designing experiments and suggests two mitigation strategies to improve the utility of this psychophysical assessment.

scholarly journals Crossmodal congruency effect scores decrease with repeat test exposure

2017 ◽  
Author(s):  
Satinder Gill ◽  
Daniel Blustein ◽  
Adam Wilson ◽  
Jon Sensinger
Keyword(s):  
Exposure Time ◽  
Congruency Effect ◽  
Learning Effect ◽  
Body Schema ◽  
Mitigation Strategies ◽  
Clinical Settings ◽  
Exposure Sessions ◽  
The Impact ◽  
Crossmodal Congruency Effect ◽  
Crossmodal Congruency

AbstractThe incorporation of feedback into a person’s body schema is well established. The crossmodal congruency effect (CCE) task is used to objectively quantify incorporation without being susceptible to experimenter biases. This visual-tactile interference task is used to calculate the CCE score as a difference in response time for incongruent and congruent trials. Here we show that this metric is susceptible to a learning effect that causes attenuation of the CCE score due to repeated task exposure sessions. We demonstrate that this learning effect is persistent, even after a 6 month hiatus in testing. Two mitigation strategies are proposed: 1. Only use CCE scores that are taken after learning has stabilized, or 2. Use a modified CCE protocol that decreases the task exposure time. We show that the modified and shortened CCE protocol, which may be required to meet time or logistical constraints in laboratory or clinical settings, reduced the impact of the learning effect on CCE results. Importantly, the CCE scores from the modified protocol were not significantly more variable than results obtained with the original protocol. This study highlights the importance of considering exposure time to the CCE task when designing experiments and suggests two mitigation strategies to improve the utility of this psychophysical assessment.

Expectation of tactile events is enough to induce crossmodal congruency effect (CCE)

2013 ◽  
Vol 26 (1-2) ◽  
pp. 146-147
Author(s):  
Pasquale Cardellicchio ◽  
Federica Iezzi ◽  
Marcello Costantini ◽  
Francesca Ferri ◽  
Ettore Ambrosini
Keyword(s):  
Congruency Effect ◽  
Crossmodal Congruency Effect ◽  
Crossmodal Congruency

scholarly journals Hands Ahead in Mind and Motion: Active Inference in Peripersonal Hand Space

Vision ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 15
Author(s):  
Johannes Lohmann ◽  
Anna Belardinelli ◽  
Martin V. Butz
Keyword(s):  
Movement Control ◽  
Virtual Object ◽  
Active Inference ◽  
Behavior Control ◽  
Motor Mapping ◽  
Anticipatory Behavior ◽  
Predictive Processes ◽  
Object Interactions ◽  
Crossmodal Congruency Effect ◽  
Crossmodal Congruency

According to theories of anticipatory behavior control, actions are initiated by predicting their sensory outcomes. From the perspective of event-predictive cognition and active inference, predictive processes activate currently desired events and event boundaries, as well as the expected sensorimotor mappings necessary to realize them, dependent on the involved predicted uncertainties before actual motor control unfolds. Accordingly, we asked whether peripersonal hand space is remapped in an uncertainty anticipating manner while grasping and placing bottles in a virtual reality (VR) setup. To investigate, we combined the crossmodal congruency paradigm with virtual object interactions in two experiments. As expected, an anticipatory crossmodal congruency effect (aCCE) at the future finger position on the bottle was detected. Moreover, a manipulation of the visuo-motor mapping of the participants’ virtual hand while approaching the bottle selectively reduced the aCCE at movement onset. Our results support theories of event-predictive, anticipatory behavior control and active inference, showing that expected uncertainties in movement control indeed influence anticipatory stimulus processing.

scholarly journals Assessing the quality of supplementary sensory feedback using a crossmodal congruency task

2017 ◽  
Author(s):  
Daniel Blustein ◽  
Adam Wilson ◽  
Jon Sensinger
Keyword(s):  
Sensory Feedback ◽  
Spatial Separation ◽  
Feedback System ◽  
Feedback Systems ◽  
Prosthetic Limbs ◽  
Extended Training ◽  
And Training ◽  
Crossmodal Congruency Effect ◽  
Crossmodal Congruency

AbstractPeripheral nerve interfaces show promise in making prosthetic limbs more biomimetic and ultimately more intuitive and useful for patients. However, approaches to assess these emerging technologies are limited in their scope and the insight they provide. When outfitting a prosthesis with a new feedback system it would be helpful to quantify its physiological correspondence, i.e. how well the experimental feedback mimics the perceived feedback in an intact limb. Here we present an approach to quantify physiological correspondence using a modified crossmodal congruency task. We trained 60 able-bodied subjects to control a bypass prosthesis under different feedback conditions and training durations. We find that the crossmodal congruency effect (CCE) score is sensitive to changes in feedback modality (multi-way ANOVA; F(2,48) = 6.02, p<0.05). After extended training, the CCE score increased as the spatial separation between expected and perceived feedback decreased (unpaired t-test, p<0.05). We present a model that can quantitatively estimate physiological correspondence given the CCE result and the measured spatial separation of the feedback. This quantification approach gives researchers a tool to assess an aspect of emerging augmented feedback systems that is not measurable with current motor assessments.

A Unique Asymmetrical Stroop Effect in Absolute Pitch Possessors

2012 ◽  
Vol 59 (5) ◽  
pp. 272-278 ◽  
Author(s):  
Lilach Akiva-Kabiri ◽  
Avishai Henik
Keyword(s):  
Selective Attention ◽  
Stroop Task ◽  
Stroop Effect ◽  
Congruency Effect ◽  
Absolute Pitch ◽  
Naming Task ◽  
Color Naming ◽  
Reading Task ◽  
Pitch Processing ◽  
Reverse Pattern

The Stroop task has been employed to study automaticity or failures of selective attention for many years. The effect is known to be asymmetrical, with words affecting color naming but not vice versa. In the current work two auditory-visual Stroop-like tasks were devised in order to study the automaticity of pitch processing in both absolute pitch (AP) possessors and musically trained controls without AP (nAP). In the tone naming task, participants were asked to name the auditory tone while ignoring a visual note name. In the note naming task, participants were asked to read a note name while ignoring the auditory tone. The nAP group showed a significant congruency effect only in the tone naming task, whereas AP possessors showed the reverse pattern, with a significant congruency effect only in the note reading task. Thus, AP possessors were unable to ignore the auditory tone when asked to read the note, but were unaffected by the verbal note name when asked to label the auditory tone. The results suggest that pitch identification in participants endowed with AP ability is automatic and impossible to suppress.

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