Visuo-Haptic Exploration for Multimodal Memory

When faced with a novel object, we explore it to understand its shape. This way we combine information coming from different senses, as touch, proprioception and vision, together with the motor information embedded in our motor execution plan. The exploration process provides a structure and constra...

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Main Authors: Alessandra Sciutti, Federica Damonte, Marta Alloisio, Giulio Sandini
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-05-01
Series:Frontiers in Integrative Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fnint.2019.00015/full
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author Alessandra Sciutti
Federica Damonte
Federica Damonte
Marta Alloisio
Marta Alloisio
Giulio Sandini
author_facet Alessandra Sciutti
Federica Damonte
Federica Damonte
Marta Alloisio
Marta Alloisio
Giulio Sandini
author_sort Alessandra Sciutti
collection DOAJ
description When faced with a novel object, we explore it to understand its shape. This way we combine information coming from different senses, as touch, proprioception and vision, together with the motor information embedded in our motor execution plan. The exploration process provides a structure and constrains this rich flow of inputs, supporting the formation of a unified percept and the memorization of the object features. However, how the exploration strategies are planned is still an open question. In particular, is the exploration strategy used to memorize an object different from the exploration strategy adopted in a recall task? To address this question we used iCube, a sensorized cube which measures its orientation in space and the location of the contacts on its faces. Participants were required to explore the cube faces where little pins were positioned in varying number. Participants had to explore the cube twice and individuate potential differences between the two presentations, which could be performed either haptically alone, or with also vision available. The haptic and visuo-haptic (VH) exploratory strategies changed significantly when finalized to memorize the structure of the object with respect to when the same object was explored to recall and compare it with its memorized instance. These findings indicate that exploratory strategies are adapted not only to the property of the object to be analyzed but also to the prospective use of the resulting representation, be it memorization or recall. The results are discussed in light of the possibility of a systematic modeling of natural VH exploration strategies.
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spelling doaj.art-7dd91c7edbed48f3b5be3c8b586d60682022-12-22T01:36:24ZengFrontiers Media S.A.Frontiers in Integrative Neuroscience1662-51452019-05-011310.3389/fnint.2019.00015357819Visuo-Haptic Exploration for Multimodal MemoryAlessandra Sciutti0Federica Damonte1Federica Damonte2Marta Alloisio3Marta Alloisio4Giulio Sandini5Cognitive Architecture for Collaborative Technologies Unit, Istituto Italiano di Tecnologia, Genoa, ItalyCognitive Architecture for Collaborative Technologies Unit, Istituto Italiano di Tecnologia, Genoa, ItalyDIBRIS, Università di Genova, Genoa, ItalyCognitive Architecture for Collaborative Technologies Unit, Istituto Italiano di Tecnologia, Genoa, ItalyDIBRIS, Università di Genova, Genoa, ItalyCognitive Architecture for Collaborative Technologies Unit, Istituto Italiano di Tecnologia, Genoa, ItalyWhen faced with a novel object, we explore it to understand its shape. This way we combine information coming from different senses, as touch, proprioception and vision, together with the motor information embedded in our motor execution plan. The exploration process provides a structure and constrains this rich flow of inputs, supporting the formation of a unified percept and the memorization of the object features. However, how the exploration strategies are planned is still an open question. In particular, is the exploration strategy used to memorize an object different from the exploration strategy adopted in a recall task? To address this question we used iCube, a sensorized cube which measures its orientation in space and the location of the contacts on its faces. Participants were required to explore the cube faces where little pins were positioned in varying number. Participants had to explore the cube twice and individuate potential differences between the two presentations, which could be performed either haptically alone, or with also vision available. The haptic and visuo-haptic (VH) exploratory strategies changed significantly when finalized to memorize the structure of the object with respect to when the same object was explored to recall and compare it with its memorized instance. These findings indicate that exploratory strategies are adapted not only to the property of the object to be analyzed but also to the prospective use of the resulting representation, be it memorization or recall. The results are discussed in light of the possibility of a systematic modeling of natural VH exploration strategies.https://www.frontiersin.org/article/10.3389/fnint.2019.00015/fullhapticvisionactive explorationbimodal perceptionperception and action
spellingShingle Alessandra Sciutti
Federica Damonte
Federica Damonte
Marta Alloisio
Marta Alloisio
Giulio Sandini
Visuo-Haptic Exploration for Multimodal Memory
Frontiers in Integrative Neuroscience
haptic
vision
active exploration
bimodal perception
perception and action
title Visuo-Haptic Exploration for Multimodal Memory
title_full Visuo-Haptic Exploration for Multimodal Memory
title_fullStr Visuo-Haptic Exploration for Multimodal Memory
title_full_unstemmed Visuo-Haptic Exploration for Multimodal Memory
title_short Visuo-Haptic Exploration for Multimodal Memory
title_sort visuo haptic exploration for multimodal memory
topic haptic
vision
active exploration
bimodal perception
perception and action
url https://www.frontiersin.org/article/10.3389/fnint.2019.00015/full
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