Audiovisual spatial recalibration but not integration is shaped by early sensory experience

Bruns, Patrick; Li, Lux; Guerreiro, Maria J. S.; Shareef, Idris; Rajendran, Siddhart S; Pitchaimuthu, Kabilan; Kekunnaya, Ramesh; Röder, Brigitte

doi:10.1016/j.isci.2022.104439

Cited by 8 publications

(7 citation statements)

References 81 publications

(158 reference statements)

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“…Future investigations should examine whether maturation of audio–visual simultaneity perception is a prerequisite for the development of rapid recalibration; for example, it would be interesting to examine rapid recalibration in patients treated for congenital cataract because they show abnormal audio–visual simultaneity perception later in life 64 . The result will provide a contrast to the spared audio–visual integration and rapid recalibration in the spatial domain after early visual deprivation 65 .…”

Section: Discussionmentioning

confidence: 92%

The development of audio–visual temporal precision precedes its rapid recalibration

Han

Chen

Maurer

et al. 2022

Sci Rep

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Through development, multisensory systems reach a balance between stability and flexibility: the systems integrate optimally cross-modal signals from the same events, while remaining adaptive to environmental changes. Is continuous intersensory recalibration required to shape optimal integration mechanisms, or does multisensory integration develop prior to recalibration? Here, we examined the development of multisensory integration and rapid recalibration in the temporal domain by re-analyzing published datasets for audio–visual, audio–tactile, and visual–tactile combinations. Results showed that children reach an adult level of precision in audio–visual simultaneity perception and show the first sign of rapid recalibration at 9 years of age. In contrast, there was very weak rapid recalibration for other cross-modal combinations at all ages, even when adult levels of temporal precision had developed. Thus, the development of audio–visual rapid recalibration appears to require the maturation of temporal precision. It may serve to accommodate distance-dependent travel time differences between light and sound.

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Section: Discussionmentioning

confidence: 92%

The development of audio–visual temporal precision precedes its rapid recalibration

Han

Chen

Maurer

et al. 2022

Sci Rep

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“…This task assessed participants’ feedforward control of grasping, by testing whether they are able to use visual estimations of the to-be-grasped object’s weight in order to scale grip force. 35 , 63 , 64 Participants repeatedly grasped and lifted three equally weighted wooden objects differing in size as naturally as possible using a pincer grip. We recorded their applied force to each object via a force-torque sensor inserted at each object’s center ( STAR Methods , cf.…”

Section: Resultsmentioning

confidence: 99%

“… 22 We here investigated whether the present multisensory training could enhance the ability to localize visual stimuli after surgery. As previous evidence has shown that cataract-treated individuals can use both visual 22 and auditory information 64 to recalibrate visual localization, we expect that their visual localization abilities would benefit from training combining audiovisual information.…”

Section: Introductionmentioning

confidence: 96%

Multisensory training improves the development of spatial cognition after sight restoration from congenital cataracts

Senna,

Piller,

Martolini

et al. 2024

iScience

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“…This predicts that manipulations reducing the momentary evidence for two signals to arise from the same source should reduce integration (Debats et al, 2017b; Debats et al, 2023). In contrast, multisensory recalibration is a process that supposedly serves to reduce persistent or constant discrepancies between sensory estimates (Bruns, 2019; Bruns et al, 2022; Noppeney, 2021; Recanzone, 1998). Though recalibration emerges on multiple time scales, the bias observed following prolonged exposure is the most well‐studied and robust effect and the one investigated here.…”

Section: Discussionmentioning

confidence: 99%

Different time scales of common‐cause evidence shape multisensory integration, recalibration and motor adaptation

Debats

Heuer

Kayser

2023

Eur J of Neuroscience

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Perceptual coherence in the face of discrepant multisensory signals is achieved via the processes of multisensory integration, recalibration and sometimes motor adaptation. These supposedly operate on different time scales, with integration reducing immediate sensory discrepancies and recalibration and motor adaptation reflecting the cumulative influence of their recent history. Importantly, whether discrepant signals are bound during perception is guided by the brains' inference of whether they originate from a common cause. When combined, these two notions lead to the hypothesis that the time scales on which integration and recalibration (or motor adaptation) operate are associated with different time scales of evidence about a common cause underlying two signals. We tested this prediction in a well‐established visuo‐motor paradigm, in which human participants performed visually guided hand movements. The kinematic correlation between hand and cursor movements indicates their common origin, which allowed us to manipulate the common‐cause evidence by titrating this correlation. Specifically, we dissociated hand and cursor signals during individual movements while preserving their correlation across the series of movement endpoints. Following our hypothesis, this manipulation reduced integration compared with a condition in which visual and proprioceptive signals were perfectly correlated. In contrast, recalibration and motor adaption were not affected by this manipulation. This supports the notion that multisensory integration and recalibration deal with sensory discrepancies on different time scales guided by common‐cause evidence: Integration is prompted by local common‐cause evidence and reduces immediate discrepancies, whereas recalibration and motor adaptation are prompted by global common‐cause evidence and reduce persistent discrepancies.

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Audiovisual spatial recalibration but not integration is shaped by early sensory experience

Cited by 8 publications

References 81 publications

The development of audio–visual temporal precision precedes its rapid recalibration

The development of audio–visual temporal precision precedes its rapid recalibration

Multisensory training improves the development of spatial cognition after sight restoration from congenital cataracts

Different time scales of common‐cause evidence shape multisensory integration, recalibration and motor adaptation

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