Audio-haptic cue integration across the lifespan

Research output: Contribution to conferencePoster

Abstract

Optimal integration of multisensory information has frequently been shown
to benefit perception by speeding up responses and increasing perceptual
precision and accuracy. These effects, however, are often demonstrated in
young adults, and to a lesser extent in older adults or children, with a
scarcity of studies examining how optimal integration changes across the
lifespan. Furthermore, most studies have used different tasks and
approaches to measure multisensory processing adaptation over large age
ranges, making it difficult to compare between them. Here, by using the
same adaptive size discrimination task and a cross-sectional design, we
investigated how audio-haptic cue integration performance changes over
the lifespan in children, younger adults, and older adults (age range
spanning from 7 to 70years). Participants were asked to give size
discrimination judgements for physical objects of different sizes using either
touch or hearing (unimodal) or both at the same time (bimodal).
Discrimination thresholds were assessed for unimodal and bimodal stimulus
presentation and compared with predictions from a maximum likelihood
estimation (MLE) model. Results show that children do not make use of
audio-haptic multisensory size information until around 13 years of age,
while both younger and older adults benefit from integrating multisensory
information, leading to increased precision. These results corroborate and
extend the findings from previous studies that used different approaches,
showing that children only gain from multisensory integration late in
childhood, but that its benefits are preserved until later in life. It further
suggests that integration of non-visual information, which becomes
increasingly important with declining visual function later in life, allows
individuals to effectively make use of redundant information, thereby
offering an advantageous compensatory mechanism for declining sensory
function.

Conference

Conference19th International Multisensory Research Forum
Abbreviated titleIMRF
CountryCanada
CityToronto
Period14/06/1817/06/18

Fingerprint

Cues
Young Adult
Touch
Hearing
Discrimination (Psychology)

Cite this

Scheller, M., Proulx, M., & Petrini, K. (2018). Audio-haptic cue integration across the lifespan. Poster session presented at 19th International Multisensory Research Forum , Toronto, Canada.

Audio-haptic cue integration across the lifespan. / Scheller, Meike; Proulx, Michael; Petrini, Karin.

2018. Poster session presented at 19th International Multisensory Research Forum , Toronto, Canada.

Research output: Contribution to conferencePoster

Scheller, M, Proulx, M & Petrini, K 2018, 'Audio-haptic cue integration across the lifespan' 19th International Multisensory Research Forum , Toronto, Canada, 14/06/18 - 17/06/18, .
Scheller M, Proulx M, Petrini K. Audio-haptic cue integration across the lifespan. 2018. Poster session presented at 19th International Multisensory Research Forum , Toronto, Canada.
Scheller, Meike ; Proulx, Michael ; Petrini, Karin. / Audio-haptic cue integration across the lifespan. Poster session presented at 19th International Multisensory Research Forum , Toronto, Canada.
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AB - Optimal integration of multisensory information has frequently been shownto benefit perception by speeding up responses and increasing perceptualprecision and accuracy. These effects, however, are often demonstrated inyoung adults, and to a lesser extent in older adults or children, with ascarcity of studies examining how optimal integration changes across thelifespan. Furthermore, most studies have used different tasks andapproaches to measure multisensory processing adaptation over large ageranges, making it difficult to compare between them. Here, by using thesame adaptive size discrimination task and a cross-sectional design, weinvestigated how audio-haptic cue integration performance changes overthe lifespan in children, younger adults, and older adults (age rangespanning from 7 to 70years). Participants were asked to give sizediscrimination judgements for physical objects of different sizes using eithertouch or hearing (unimodal) or both at the same time (bimodal).Discrimination thresholds were assessed for unimodal and bimodal stimuluspresentation and compared with predictions from a maximum likelihoodestimation (MLE) model. Results show that children do not make use ofaudio-haptic multisensory size information until around 13 years of age,while both younger and older adults benefit from integrating multisensoryinformation, leading to increased precision. These results corroborate andextend the findings from previous studies that used different approaches,showing that children only gain from multisensory integration late inchildhood, but that its benefits are preserved until later in life. It furthersuggests that integration of non-visual information, which becomesincreasingly important with declining visual function later in life, allowsindividuals to effectively make use of redundant information, therebyoffering an advantageous compensatory mechanism for declining sensoryfunction.

M3 - Poster

ER -