Auditory-Tactile integration: Effects of Phase of Sinusoidal Stimulation at 50 and 250 Hz.
The perceptual integration of 50- and 250-Hz, 500-ms vibrotactile and auditory tones was studied in detection experiments as a function of the relative phase (0°, 72°, 144°, 216°, and 288°) of the tone pulses. Vibrotactile stimuli were delivered through a single-channel vibrator to the left middle f...
| Автори: | , , , |
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| Інші автори: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
2021
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| Онлайн доступ: | https://hdl.handle.net/1721.1/133008 |
| _version_ | 1826202028673597440 |
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| author | Ranjbar, Parivash Wilson, E Courtenay Reed, Charlotte M. Braida, Louis D |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Ranjbar, Parivash Wilson, E Courtenay Reed, Charlotte M. Braida, Louis D |
| author_sort | Ranjbar, Parivash |
| collection | MIT |
| description | The perceptual integration of 50- and 250-Hz, 500-ms vibrotactile and auditory tones was studied in detection experiments as a function of the relative phase (0°, 72°, 144°, 216°, and 288°) of the tone pulses. Vibrotactile stimuli were delivered through a single-channel vibrator to the left middle fingertip and auditory stimuli were presented diotically through headphones in a background of 50 dB SPL broadband noise. The observers were four adults with normal hearing. The vibrotactile and auditory stimulus levels used each yielded 63-77%-Correct unimodal detection performance in a two-interval two-alternative forced-choice task. Scores for the auditory-alone and tactile-alone conditions averaged roughly 70%-Correct. Mean scores for the auditory plus tactile conditions averaged across different phases were 77.1%-Correct at 50 Hz and 79.6%-Correct at 250 Hz. At 50 Hz, no differences in performance were observed as a function of the relative phase at which the combined auditory and tactile signals were presented. At 250 Hz, significantly higher scores were observed for one phase combination (72°) compared to two of the other four relative phases. Performance on the auditory plus tactile conditions resulted in significant integrative effects and was generally more consistent with a "Pythagorean Sum" model than with either an "Algebraic Sum" or an "Optimum Single Cannel" model of perceptual integration. |
| first_indexed | 2024-09-23T12:01:04Z |
| format | Article |
| id | mit-1721.1/133008 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:01:04Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | mit-1721.1/1330082022-10-01T07:38:16Z Auditory-Tactile integration: Effects of Phase of Sinusoidal Stimulation at 50 and 250 Hz. Ranjbar, Parivash Wilson, E Courtenay Reed, Charlotte M. Braida, Louis D Massachusetts Institute of Technology. Research Laboratory of Electronics The perceptual integration of 50- and 250-Hz, 500-ms vibrotactile and auditory tones was studied in detection experiments as a function of the relative phase (0°, 72°, 144°, 216°, and 288°) of the tone pulses. Vibrotactile stimuli were delivered through a single-channel vibrator to the left middle fingertip and auditory stimuli were presented diotically through headphones in a background of 50 dB SPL broadband noise. The observers were four adults with normal hearing. The vibrotactile and auditory stimulus levels used each yielded 63-77%-Correct unimodal detection performance in a two-interval two-alternative forced-choice task. Scores for the auditory-alone and tactile-alone conditions averaged roughly 70%-Correct. Mean scores for the auditory plus tactile conditions averaged across different phases were 77.1%-Correct at 50 Hz and 79.6%-Correct at 250 Hz. At 50 Hz, no differences in performance were observed as a function of the relative phase at which the combined auditory and tactile signals were presented. At 250 Hz, significantly higher scores were observed for one phase combination (72°) compared to two of the other four relative phases. Performance on the auditory plus tactile conditions resulted in significant integrative effects and was generally more consistent with a "Pythagorean Sum" model than with either an "Algebraic Sum" or an "Optimum Single Cannel" model of perceptual integration. National Institutes of Health (Grant R01-DC00117) 2021-10-15T19:33:07Z 2021-10-15T19:33:07Z 2016-04 2019-05-10T15:39:05Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133008 Ranjbar, Parivash, Wilson, E Courtenay, Reed, Charlotte M. and Braida, Louis D. 2016. "Auditory-Tactile integration: Effects of Phase of Sinusoidal Stimulation at 50 and 250 Hz.." Int J Eng Technol Sci Innov, 1 (2). en https://www.ijetsi.org/more.php?id=18 Int J Eng Technol Sci Innov Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf PMC |
| spellingShingle | Ranjbar, Parivash Wilson, E Courtenay Reed, Charlotte M. Braida, Louis D Auditory-Tactile integration: Effects of Phase of Sinusoidal Stimulation at 50 and 250 Hz. |
| title | Auditory-Tactile integration: Effects of Phase of Sinusoidal Stimulation at 50 and 250 Hz. |
| title_full | Auditory-Tactile integration: Effects of Phase of Sinusoidal Stimulation at 50 and 250 Hz. |
| title_fullStr | Auditory-Tactile integration: Effects of Phase of Sinusoidal Stimulation at 50 and 250 Hz. |
| title_full_unstemmed | Auditory-Tactile integration: Effects of Phase of Sinusoidal Stimulation at 50 and 250 Hz. |
| title_short | Auditory-Tactile integration: Effects of Phase of Sinusoidal Stimulation at 50 and 250 Hz. |
| title_sort | auditory tactile integration effects of phase of sinusoidal stimulation at 50 and 250 hz |
| url | https://hdl.handle.net/1721.1/133008 |
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