Path integration in tactile perception of shapes

Moscatelli, Alessandro; Naceri, Abdeldjallil; Ernst, Marc O.

doi:10.1016/j.bbr.2014.08.025

Cited by 24 publications

(24 citation statements)

References 33 publications

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“…Touch is able to provide displacement information, showing that the human brain is able to integrate the motion signal over time. Three behavioral experiments [160] showed that this is actually the case, that is, observers were able to integrate tactile velocity over time to produce a reliable estimate of the motion path. Using the tactile device described in [161], the authors generated slip motion along several triangular paths.…”

Section: Hand Synergies: Sensingmentioning

confidence: 99%

“…This framework provides a demonstration-of-principle that is likely to apply also for the acquisition of muscle synergies for dimensionality reduction during movement. In essence, the skin of our bodies have thousands of sensors [160] that provide monosynaptic (direct synaptic) input to the neurons of the cuneate nucleus in the brainstem. All tactile inputs that reach the neocortex of the brain must first pass the cuneate nucleus where information is integrated by a monolayer of neurons, supported by a limited population of local inhibitory interneurons.…”

Section: Hand Synergies: Sensingmentioning

confidence: 99%

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Hand synergies: Integration of robotics and neuroscience for understanding the control of biological and artificial hands

Santello

Bianchi

Gabiccini

et al. 2016

Physics of Life Reviews

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217

160

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The term ‘synergy’ – from the Greek synergia – means ‘working together’. The concept of multiple elements working together towards a common goal has been extensively used in neuroscience to develop theoretical frameworks, experimental approaches, and analytical techniques to understand neural control of movement, and for applications for neuro-rehabilitation. In the past decade, roboticists have successfully applied the framework of synergies to create novel design and control concepts for artificial hands, i.e., robotic hands and prostheses. At the same time, robotic research on the sensorimotor integration underlying the control and sensing of artificial hands has inspired new research approaches in neuroscience, and has provided useful instruments for novel experiments. The ambitious goal of integrating expertise and research approaches in robotics and neuroscience to study the properties and applications of the concept of synergies is generating a number of multidisciplinary cooperative projects, among which the recently finished 4-year European project “The Hand Embodied” (THE). This paper reviews the main insights provided by this framework. Specifically, we provide an overview of neuroscientific bases of hand synergies and introduce how robotics has leveraged the insights from neuroscience for innovative design in hardware and controllers for biomedical engineering applications, including myoelectric hand prostheses, devices for haptics research, and wearable sensing of human hand kinematics. The review also emphasizes how this multidisciplinary collaboration has generated new ways to conceptualize a synergy-based approach for robotics, and provides guidelines and principles for analyzing human behavior and synthesizing artificial robotic systems based on a theory of synergies.

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Section: Hand Synergies: Sensingmentioning

confidence: 99%

Section: Hand Synergies: Sensingmentioning

confidence: 99%

Hand synergies: Integration of robotics and neuroscience for understanding the control of biological and artificial hands

Santello

Bianchi

Gabiccini

et al. 2016

Physics of Life Reviews

Self Cite

217

160

View full text Add to dashboard Cite

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“…In experiment 1, we used the device described in Fritschi et al (2006) and Moscatelli et al (2014) to deliver the motion stimuli. The device consisted of a rotating, sandblasted billiard ball (diameter: 6 cm) having a fine-textured surface lacking individually detectable features such as dots or ridges.…”

Section: Apparatusmentioning

confidence: 99%

The role of vibration in tactile speed perception

Dallmann

Ernst

Moscatelli

2015

Journal of Neurophysiology

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Dallmann CJ, Ernst MO, Moscatelli A. The role of vibration in tactile speed perception. J Neurophysiol 114: 3131-3139, 2015. First published September 30, 2015 doi:10.1152/jn.00621.2015.-The relative motion between the surface of an object and our fingers produces patterns of skin deformation such as stretch, indentation, and vibrations. In this study, we hypothesized that motion-induced vibrations are combined with other tactile cues for the discrimination of tactile speed. Specifically, we hypothesized that vibrations provide a critical cue to tactile speed on surfaces lacking individually detectable features like dots or ridges. Thus masking vibrations unrelated to slip motion should impair the discriminability of tactile speed, and the effect should be surface-dependent. To test this hypothesis, we measured the precision of participants in discriminating the speed of moving surfaces having either a fine or a ridged texture, while adding masking vibratory noise in the working range of the fast-adapting mechanoreceptive afferents. Vibratory noise significantly reduced the precision of speed discrimination, and the effect was much stronger on the fine-textured than on the ridged surface. On both surfaces, masking vibrations at intermediate frequencies of 64 Hz (65-m peak-topeak amplitude) and 128 Hz (10 m) had the strongest effect, followed by high-frequency vibrations of 256 Hz (1 m) and lowfrequency vibrations of 32 Hz (50 and 25 m). These results are consistent with our hypothesis that slip-induced vibrations concur to the discrimination of tactile speed.

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“…In addition, haptics can compensate in part for functions typically associated with the visual or auditory modality; for example, a person who is blind can use the Braille system to access the written word [18] while a person who is deaf can use vibrotactile stimulation to appreciate the world of music [19]. In fact, [20] report that reliable path integration can be accomplished from tactile cues alone by integrating motion over time, so that individuals could infer multiple geometric characteristics of a simulated triangle.…”

Section: Introductionmentioning

confidence: 99%

Spatial Memory for Patterns of Taps on the Fingers

Markel

2015

IEEE Trans. Haptics

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Ongoing development of haptic technology has the potential to provide significant improvement in safety and performance in demanding environments where vision and hearing are compromised. Research regarding the cognitive psychology of touch is lacking and could be beneficial in the development of expectations about human performance for the refinement and implementation of haptic technology. This study examines haptic-spatial memory using a novel assessment method based on finger anatomy. In addition, evidence is presented for a serial-position effect for haptic-spatial memory that is analogous to the classic serial-position effect demonstrated in the verbal recall of word lists. Finally, haptic-spatial memory is compared with short- and long-term memory for visual-spatial tasks.

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Path integration in tactile perception of shapes

Cited by 24 publications

References 33 publications

Hand synergies: Integration of robotics and neuroscience for understanding the control of biological and artificial hands

Hand synergies: Integration of robotics and neuroscience for understanding the control of biological and artificial hands

The role of vibration in tactile speed perception

Spatial Memory for Patterns of Taps on the Fingers

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