Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the Forearm

We examined discrimination accuracy of vibrotactile patterns on the upper forearm using a 2 × 3 array of voice coil actuators to generate 100 Hz vibrotactile stimulation. We evaluated participants’ ability to recognize distinct vibrotactile patterns presented both simultaneously (1000 ms) and sequen...

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Main Authors: Nashmin Yeganeh, Ivan Makarov, Árni Kristjánsson, Runar Unnthorsson
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/14/1/43
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author Nashmin Yeganeh
Ivan Makarov
Árni Kristjánsson
Runar Unnthorsson
author_facet Nashmin Yeganeh
Ivan Makarov
Árni Kristjánsson
Runar Unnthorsson
author_sort Nashmin Yeganeh
collection DOAJ
description We examined discrimination accuracy of vibrotactile patterns on the upper forearm using a 2 × 3 array of voice coil actuators to generate 100 Hz vibrotactile stimulation. We evaluated participants’ ability to recognize distinct vibrotactile patterns presented both simultaneously (1000 ms) and sequentially (500 ms with a 450 ms interval). Recognition accuracy was significantly higher for sequential (93.24%) than for simultaneous presentation (26.15%). Patterns using 2–3 actuators were recognized more accurately than those using 4–5 actuators. During sequential presentation, there were primacy and recency effects; accuracy was higher for the initial and final stimulations in a sequence. Over time, participants also demonstrated a learning effect, becoming more adept at recognizing and interpreting vibrotactile patterns. This underscores the potential for skill development and emphasizes the value of training for wearable vibrotactile devices. We discuss the implications of these findings for the design of tactile communication devices and wearable technology.
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spelling doaj.art-f08e70865fc24ad9b862ca91695dd2932024-01-10T14:50:43ZengMDPI AGApplied Sciences2076-34172023-12-011414310.3390/app14010043Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the ForearmNashmin Yeganeh0Ivan Makarov1Árni Kristjánsson2Runar Unnthorsson3The Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, 102 Reykjavík, IcelandThe Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, 102 Reykjavík, IcelandIcelandic Vision Laboratory, Faculty of Psychology, University of Iceland, 102 Reykjavik, IcelandThe Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, 102 Reykjavík, IcelandWe examined discrimination accuracy of vibrotactile patterns on the upper forearm using a 2 × 3 array of voice coil actuators to generate 100 Hz vibrotactile stimulation. We evaluated participants’ ability to recognize distinct vibrotactile patterns presented both simultaneously (1000 ms) and sequentially (500 ms with a 450 ms interval). Recognition accuracy was significantly higher for sequential (93.24%) than for simultaneous presentation (26.15%). Patterns using 2–3 actuators were recognized more accurately than those using 4–5 actuators. During sequential presentation, there were primacy and recency effects; accuracy was higher for the initial and final stimulations in a sequence. Over time, participants also demonstrated a learning effect, becoming more adept at recognizing and interpreting vibrotactile patterns. This underscores the potential for skill development and emphasizes the value of training for wearable vibrotactile devices. We discuss the implications of these findings for the design of tactile communication devices and wearable technology.https://www.mdpi.com/2076-3417/14/1/43vibrotactile stimulusvoice coil actuatorwearable vibrotactile devicevibratory stimulusvibrotactile localizationvibrotactile frequency
spellingShingle Nashmin Yeganeh
Ivan Makarov
Árni Kristjánsson
Runar Unnthorsson
Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the Forearm
Applied Sciences
vibrotactile stimulus
voice coil actuator
wearable vibrotactile device
vibratory stimulus
vibrotactile localization
vibrotactile frequency
title Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the Forearm
title_full Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the Forearm
title_fullStr Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the Forearm
title_full_unstemmed Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the Forearm
title_short Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the Forearm
title_sort discrimination accuracy of sequential versus simultaneous vibrotactile stimulation on the forearm
topic vibrotactile stimulus
voice coil actuator
wearable vibrotactile device
vibratory stimulus
vibrotactile localization
vibrotactile frequency
url https://www.mdpi.com/2076-3417/14/1/43
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