Different hemispheric specialization for face/word recognition: A high‐density ERP study with hemifield visual stimulation
Abstract Introduction The right fusiform face area (FFA) is important for face recognition, whereas the left visual word fusiform area (VWFA) is critical for word processing. Nevertheless, the early stages of unconscious and conscious face and word processing have not been studied systematically. Ma...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-06-01
|
| Series: | Brain and Behavior |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/brb3.1649 |
| _version_ | 1819093724183920640 |
|---|---|
| author | Naomi Takamiya Toshihiko Maekawa Takao Yamasaki Katsuya Ogata Emi Yamada Mutsuhide Tanaka Shozo Tobimatsu |
| author_facet | Naomi Takamiya Toshihiko Maekawa Takao Yamasaki Katsuya Ogata Emi Yamada Mutsuhide Tanaka Shozo Tobimatsu |
| author_sort | Naomi Takamiya |
| collection | DOAJ |
| description | Abstract Introduction The right fusiform face area (FFA) is important for face recognition, whereas the left visual word fusiform area (VWFA) is critical for word processing. Nevertheless, the early stages of unconscious and conscious face and word processing have not been studied systematically. Materials and Methods To explore hemispheric differences for face and word recognition, we manipulated the visual field (left vs. right) and stimulus duration (subliminal [17 ms] versus supraliminal [300 ms]). We recorded P100 and N170 peaks with high‐density ERPs in response to faces/objects or Japanese words/scrambled words in 18 healthy young subjects. Results Contralateral P100 was larger than ipsilateral P100 for all stimulus types in the supraliminal, but not subliminal condition. The face‐ and word‐N170s were not evoked in the subliminal condition. The N170 amplitude for the supraliminal face stimuli was significantly larger than that for the objects, and right hemispheric specialization was found for face recognition, irrespective of stimulus visual hemifield. Conversely, the supraliminal word‐N170 amplitude was not significantly modulated by stimulus type, visual field, or hemisphere. Conclusions These results suggest that visual awareness is crucial for face and word recognition. Our study using hemifield stimulus presentation further demonstrates the robust right FFA for face recognition but not the left VWFA for word recognition in the Japanese brain. |
| first_indexed | 2024-12-21T23:16:03Z |
| format | Article |
| id | doaj.art-36d4d26667714709b5810a0eacf16623 |
| institution | Directory Open Access Journal |
| issn | 2162-3279 |
| language | English |
| last_indexed | 2024-12-21T23:16:03Z |
| publishDate | 2020-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Brain and Behavior |
| spelling | doaj.art-36d4d26667714709b5810a0eacf166232022-12-21T18:46:55ZengWileyBrain and Behavior2162-32792020-06-01106n/an/a10.1002/brb3.1649Different hemispheric specialization for face/word recognition: A high‐density ERP study with hemifield visual stimulationNaomi Takamiya0Toshihiko Maekawa1Takao Yamasaki2Katsuya Ogata3Emi Yamada4Mutsuhide Tanaka5Shozo Tobimatsu6Department of Clinical Neurophysiology Graduate School of Medical Sciences Neurological Institute Kyushu University Fukuoka JapanDepartment of Clinical Neurophysiology Graduate School of Medical Sciences Neurological Institute Kyushu University Fukuoka JapanDepartment of Clinical Neurophysiology Graduate School of Medical Sciences Neurological Institute Kyushu University Fukuoka JapanDepartment of Clinical Neurophysiology Graduate School of Medical Sciences Neurological Institute Kyushu University Fukuoka JapanDepartment of Clinical Neurophysiology Graduate School of Medical Sciences Neurological Institute Kyushu University Fukuoka JapanDepartment of Clinical Neurophysiology Graduate School of Medical Sciences Neurological Institute Kyushu University Fukuoka JapanDepartment of Clinical Neurophysiology Graduate School of Medical Sciences Neurological Institute Kyushu University Fukuoka JapanAbstract Introduction The right fusiform face area (FFA) is important for face recognition, whereas the left visual word fusiform area (VWFA) is critical for word processing. Nevertheless, the early stages of unconscious and conscious face and word processing have not been studied systematically. Materials and Methods To explore hemispheric differences for face and word recognition, we manipulated the visual field (left vs. right) and stimulus duration (subliminal [17 ms] versus supraliminal [300 ms]). We recorded P100 and N170 peaks with high‐density ERPs in response to faces/objects or Japanese words/scrambled words in 18 healthy young subjects. Results Contralateral P100 was larger than ipsilateral P100 for all stimulus types in the supraliminal, but not subliminal condition. The face‐ and word‐N170s were not evoked in the subliminal condition. The N170 amplitude for the supraliminal face stimuli was significantly larger than that for the objects, and right hemispheric specialization was found for face recognition, irrespective of stimulus visual hemifield. Conversely, the supraliminal word‐N170 amplitude was not significantly modulated by stimulus type, visual field, or hemisphere. Conclusions These results suggest that visual awareness is crucial for face and word recognition. Our study using hemifield stimulus presentation further demonstrates the robust right FFA for face recognition but not the left VWFA for word recognition in the Japanese brain.https://doi.org/10.1002/brb3.1649Event related potentialsface and word recognitionhemifield visual stimulationsubliminal and supraliminal perception |
| spellingShingle | Naomi Takamiya Toshihiko Maekawa Takao Yamasaki Katsuya Ogata Emi Yamada Mutsuhide Tanaka Shozo Tobimatsu Different hemispheric specialization for face/word recognition: A high‐density ERP study with hemifield visual stimulation Brain and Behavior Event related potentials face and word recognition hemifield visual stimulation subliminal and supraliminal perception |
| title | Different hemispheric specialization for face/word recognition: A high‐density ERP study with hemifield visual stimulation |
| title_full | Different hemispheric specialization for face/word recognition: A high‐density ERP study with hemifield visual stimulation |
| title_fullStr | Different hemispheric specialization for face/word recognition: A high‐density ERP study with hemifield visual stimulation |
| title_full_unstemmed | Different hemispheric specialization for face/word recognition: A high‐density ERP study with hemifield visual stimulation |
| title_short | Different hemispheric specialization for face/word recognition: A high‐density ERP study with hemifield visual stimulation |
| title_sort | different hemispheric specialization for face word recognition a high density erp study with hemifield visual stimulation |
| topic | Event related potentials face and word recognition hemifield visual stimulation subliminal and supraliminal perception |
| url | https://doi.org/10.1002/brb3.1649 |
| work_keys_str_mv | AT naomitakamiya differenthemisphericspecializationforfacewordrecognitionahighdensityerpstudywithhemifieldvisualstimulation AT toshihikomaekawa differenthemisphericspecializationforfacewordrecognitionahighdensityerpstudywithhemifieldvisualstimulation AT takaoyamasaki differenthemisphericspecializationforfacewordrecognitionahighdensityerpstudywithhemifieldvisualstimulation AT katsuyaogata differenthemisphericspecializationforfacewordrecognitionahighdensityerpstudywithhemifieldvisualstimulation AT emiyamada differenthemisphericspecializationforfacewordrecognitionahighdensityerpstudywithhemifieldvisualstimulation AT mutsuhidetanaka differenthemisphericspecializationforfacewordrecognitionahighdensityerpstudywithhemifieldvisualstimulation AT shozotobimatsu differenthemisphericspecializationforfacewordrecognitionahighdensityerpstudywithhemifieldvisualstimulation |