F Giovannelli1, F Giganti2, S Righi2, A Peru2, A Borgheresi3, G Zaccara3, M P Viggiano2, M Cincotta4. 1. Unit of Neurology, Florence Health Authority, Florence, Italy; Departments of Neuroscience, Psychology, Drug Research, Child Health, University of Florence, Florence, Italy. 2. Departments of Neuroscience, Psychology, Drug Research, Child Health, University of Florence, Florence, Italy. 3. Unit of Neurology, Florence Health Authority, Florence, Italy. 4. Unit of Neurology, Florence Health Authority, Florence, Italy. Electronic address: cincotta@unifi.it.
Abstract
BACKGROUND: Recent neuroimaging data support the hypothesis of a multisensory interplay at low-level sensory-specific cortex. OBJECTIVE: We used an on-line interference approach by rTMS to investigate the role of the left lateral occipital cortex (LOC) in audio-visual (AV) object recognition process. METHODS: Fifteen healthy volunteers performed a visual identification task of degraded pictures presented alone or simultaneously to coherent or non-coherent sounds. Focal 10-Hz rTMS at an intensity of 100% resting motor threshold was delivered simultaneously to the picture. Two blocks of 60 pictures were randomly displayed in two different experimental conditions: rTMS of the left LOC and over Cz. RESULTS: rTMS of the left LOC produced a worsening of the accuracy compared to rTMS over Cz specifically in the coherent AV condition. CONCLUSION: These data support the view that audio-visual interaction effect may occur at early stage of recognition processing.
BACKGROUND: Recent neuroimaging data support the hypothesis of a multisensory interplay at low-level sensory-specific cortex. OBJECTIVE: We used an on-line interference approach by rTMS to investigate the role of the left lateral occipital cortex (LOC) in audio-visual (AV) object recognition process. METHODS: Fifteen healthy volunteers performed a visual identification task of degraded pictures presented alone or simultaneously to coherent or non-coherent sounds. Focal 10-Hz rTMS at an intensity of 100% resting motor threshold was delivered simultaneously to the picture. Two blocks of 60 pictures were randomly displayed in two different experimental conditions: rTMS of the left LOC and over Cz. RESULTS: rTMS of the left LOC produced a worsening of the accuracy compared to rTMS over Cz specifically in the coherent AV condition. CONCLUSION: These data support the view that audio-visual interaction effect may occur at early stage of recognition processing.
Authors: Lysianne Beynel; Lawrence G Appelbaum; Bruce Luber; Courtney A Crowell; Susan A Hilbig; Wesley Lim; Duy Nguyen; Nicolas A Chrapliwy; Simon W Davis; Roberto Cabeza; Sarah H Lisanby; Zhi-De Deng Journal: Neurosci Biobehav Rev Date: 2019-08-29 Impact factor: 8.989
Authors: Ali H Palejwala; Kyle P O'Connor; Panayiotis Pelargos; Robert G Briggs; Camille K Milton; Andrew K Conner; Ty M Milligan; Daniel L O'Donoghue; Chad A Glenn; Michael E Sughrue Journal: Surg Radiol Anat Date: 2019-11-16 Impact factor: 1.246