Pre-Attentive Neural Signatures of Auditory Spatial Processing in Listeners With Normal Hearing and Sensorineural Hearing Impairment: A Comparative Study (Record no. 17727)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 02479caa a2200193 4500 |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER | |
| International Standard Serial Number | 1558-9137 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Nisha, K. V |
| 245 #0 - TITLE STATEMENT | |
| Title | Pre-Attentive Neural Signatures of Auditory Spatial Processing in Listeners With Normal Hearing and Sensorineural Hearing Impairment: A Comparative Study |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Name of publisher, distributor, etc. | ASHA |
| Date of publication, distribution, etc. | 2019 |
| 270 ## - ADDRESS | |
| Address | All India Institute of Speech and Hearing, Manasagangothri, Mysuru, India |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 437-449 |
| 490 ## - SERIES STATEMENT | |
| Volume/sequential designation | Volume 28 Issue 2s |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Purpose: This study was carried out to understand the neural intricacies of auditory spatial processing in listeners with sensorineural hearing impairment (SNHI) and compare it with normal hearing (NH) listeners using both local and global measures of waveform analyses.Method:A standard group comparison research design was adopted in this study. Participants were assigned to 2 groups. Group I consisted of 13 participants with mild–moderate flat or sloping SNHI, while Group II consisted of 13 participants with NH sensitivity. Electroencephalographic data using virtual acoustic stimuli (spatially loaded stimuli played in center, right, and left hemifields) were recorded from 64 electrode sites in passive oddball paradigm. Both local (electrode-wise waveform analysis) and global (dissimilarity index, electric field strength, and topographic pattern analyses) measures were performed on the electroencephalographic data.Results:Results of local waveform analyses marked the appearance of mismatch negativity in an earlier time window, relative to those reported conventionally in both the groups. The global measures of electric field strength and topographic modulations (dissimilarity index) revealed differences between the 2 groups in different time periods, indicating multiphases (integration and consolidation) of spatial processing. Further, the topographic pattern analysis showed the emergence of different scalp maps for SNHI and NH in the time window corresponding to mismatch negativity (78–150 ms), suggestive of differential spatial processing between the groups at the cortical level.Conclusions: The findings of this study highlights the differential allotment of neural generators, denoting variations in spatial processing between SNHI and NH individuals. |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ajith Kumar, U |
| 773 ## - HOST ITEM ENTRY | |
| Main entry heading | American Journal of Audiology |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://doi.org/10.1044/2018_AJA-IND50-18-0099 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Faculty Publications |
| -- | FJAS |
No items available.