The neural mechanisms of reliability weighted integration of shape information from vision and touch

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Without internal affiliation

Standard

The neural mechanisms of reliability weighted integration of shape information from vision and touch. / Helbig, Hannah B.; Ernst, Marc O.; Ricciardi, Emiliano; Pietrini, Pietro; Thielscher, Axel; Mayer, Katja M.; Schultz, Johannes; Noppeney, Uta.

In: NeuroImage, Vol. 60, No. 2, 2012, p. 1063-1072.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Harvard

Helbig, HB, Ernst, MO, Ricciardi, E, Pietrini, P, Thielscher, A, Mayer, KM, Schultz, J & Noppeney, U 2012, 'The neural mechanisms of reliability weighted integration of shape information from vision and touch' NeuroImage, vol 60, no. 2, pp. 1063-1072., 10.1016/j.neuroimage.2011.09.072

APA

Helbig, H. B., Ernst, M. O., Ricciardi, E., Pietrini, P., Thielscher, A., Mayer, K. M., ... Noppeney, U. (2012). The neural mechanisms of reliability weighted integration of shape information from vision and touch. NeuroImage, 60(2), 1063-1072. 10.1016/j.neuroimage.2011.09.072

CBE

Helbig HB, Ernst MO, Ricciardi E, Pietrini P, Thielscher A, Mayer KM, Schultz J, Noppeney U. 2012. The neural mechanisms of reliability weighted integration of shape information from vision and touch. NeuroImage. 60(2):1063-1072. Available from: 10.1016/j.neuroimage.2011.09.072

MLA

Vancouver

Helbig HB, Ernst MO, Ricciardi E, Pietrini P, Thielscher A, Mayer KM et al. The neural mechanisms of reliability weighted integration of shape information from vision and touch. NeuroImage. 2012;60(2):1063-1072. Available from: 10.1016/j.neuroimage.2011.09.072

Author

Helbig, Hannah B.; Ernst, Marc O.; Ricciardi, Emiliano; Pietrini, Pietro; Thielscher, Axel; Mayer, Katja M.; Schultz, Johannes; Noppeney, Uta / The neural mechanisms of reliability weighted integration of shape information from vision and touch.

In: NeuroImage, Vol. 60, No. 2, 2012, p. 1063-1072.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{c1b68754e343450db4b574ee9e1714e1,
title = "The neural mechanisms of reliability weighted integration of shape information from vision and touch",
publisher = "Academic Press",
author = "Helbig, {Hannah B.} and Ernst, {Marc O.} and Emiliano Ricciardi and Pietro Pietrini and Axel Thielscher and Mayer, {Katja M.} and Johannes Schultz and Uta Noppeney",
year = "2012",
doi = "10.1016/j.neuroimage.2011.09.072",
volume = "60",
number = "2",
pages = "1063--1072",
journal = "NeuroImage",
issn = "1053-8119",

}

RIS

TY - JOUR

T1 - The neural mechanisms of reliability weighted integration of shape information from vision and touch

A1 - Helbig,Hannah B.

A1 - Ernst,Marc O.

A1 - Ricciardi,Emiliano

A1 - Pietrini,Pietro

A1 - Thielscher,Axel

A1 - Mayer,Katja M.

A1 - Schultz,Johannes

A1 - Noppeney,Uta

AU - Helbig,Hannah B.

AU - Ernst,Marc O.

AU - Ricciardi,Emiliano

AU - Pietrini,Pietro

AU - Thielscher,Axel

AU - Mayer,Katja M.

AU - Schultz,Johannes

AU - Noppeney,Uta

PB - Academic Press

PY - 2012

Y1 - 2012

N2 - Behaviourally, humans have been shown to integrate multisensory information in a statistically-optimal fashion by averaging the individual unisensory estimates according to their relative reliabilities. This form of integration is optimal in that it yields the most reliable (i.e. least variable) multisensory percept. The present study investigates the neural mechanisms underlying integration of visual and tactile shape information at the macroscopic scale of the regional BOLD response. Observers discriminated the shapes of ellipses that were presented bimodally (visual–tactile) or visually alone. A 2×5 factorial design manipulated (i) the presence vs. absence of tactile shape information and (ii) the reliability of the visual shape information (five levels). We then investigated whether regional activations underlying tactile shape discrimination depended on the reliability of visual shape. Indeed, in primary somatosensory cortices (bilateral BA2) and the superior parietal lobe the responses to tactile shape input were increased when the reliability of visual shape information was reduced. Conversely, tactile inputs suppressed visual activations in the right posterior fusiform gyrus, when the visual signal was blurred and unreliable. Somatosensory and visual cortices may sustain integration of visual and tactile shape information either via direct connections from visual areas or top-down effects from higher order parietal areas.

AB - Behaviourally, humans have been shown to integrate multisensory information in a statistically-optimal fashion by averaging the individual unisensory estimates according to their relative reliabilities. This form of integration is optimal in that it yields the most reliable (i.e. least variable) multisensory percept. The present study investigates the neural mechanisms underlying integration of visual and tactile shape information at the macroscopic scale of the regional BOLD response. Observers discriminated the shapes of ellipses that were presented bimodally (visual–tactile) or visually alone. A 2×5 factorial design manipulated (i) the presence vs. absence of tactile shape information and (ii) the reliability of the visual shape information (five levels). We then investigated whether regional activations underlying tactile shape discrimination depended on the reliability of visual shape. Indeed, in primary somatosensory cortices (bilateral BA2) and the superior parietal lobe the responses to tactile shape input were increased when the reliability of visual shape information was reduced. Conversely, tactile inputs suppressed visual activations in the right posterior fusiform gyrus, when the visual signal was blurred and unreliable. Somatosensory and visual cortices may sustain integration of visual and tactile shape information either via direct connections from visual areas or top-down effects from higher order parietal areas.

U2 - 10.1016/j.neuroimage.2011.09.072

DO - 10.1016/j.neuroimage.2011.09.072

JO - NeuroImage

JF - NeuroImage

SN - 1053-8119

IS - 2

VL - 60

SP - 1063

EP - 1072

ER -