Characteristics of visual conduction under Top-down perceptual processing
AIM: To study the visual efficiency and characteristics of Top-down perceptual pathway in children.METHODS: Totally 26 children volunteers in the outpatient department from January to June 2020 were selected. We adopted the photos of children's self-face as the Top-down perceptive fixation poin...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Press of International Journal of Ophthalmology (IJO PRESS)
2021-04-01
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| Series: | Guoji Yanke Zazhi |
| Subjects: | |
| Online Access: | http://ies.ijo.cn/cn_publish/2021/4/202104038.pdf |
| _version_ | 1818733276310798336 |
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| author | Ai-Bao Zhou Hong-Yun Yue Xian-Cui Liu Fen Zhang |
| author_facet | Ai-Bao Zhou Hong-Yun Yue Xian-Cui Liu Fen Zhang |
| author_sort | Ai-Bao Zhou |
| collection | DOAJ |
| description | AIM: To study the visual efficiency and characteristics of Top-down perceptual pathway in children.METHODS: Totally 26 children volunteers in the outpatient department from January to June 2020 were selected. We adopted the photos of children's self-face as the Top-down perceptive fixation point pictures. The N75 time, P100 peak time, P100 amplitude and P100 repolarization time were recorded by graphic visual evoked potential(PVEP)examination.RESULTS: Different visual perception pathway had no significant effect on the latency of N75, while different spatial frequencies have a significant effect on the N75 time. The latency of N75 was prolonged under high frequency spatial stimulation. The interaction between visual perceptual processing path and spatial frequency has a significant effect on the peak time of P100.Under Top-down condition, the peak time of P100 was significantly shortened under high-frequency spatial stimulus. Different visual perception paths and spatial frequencies had significant effects on P100 amplitude, and Top-down perceptual processing and spatial frequencies had significant effects on the time of P100 wave repolarization, while the interaction between processing paths and spatial frequencies had no significant effects.CONCLUSION:Under Top-down visual perceptual, the visual conduction velocity and visual condition efficiency are improved in children's visual process. |
| first_indexed | 2024-12-17T23:46:53Z |
| format | Article |
| id | doaj.art-dbeb8a412d4841c4820d667bbc8f345c |
| institution | Directory Open Access Journal |
| issn | 1672-5123 |
| language | English |
| last_indexed | 2024-12-17T23:46:53Z |
| publishDate | 2021-04-01 |
| publisher | Press of International Journal of Ophthalmology (IJO PRESS) |
| record_format | Article |
| series | Guoji Yanke Zazhi |
| spelling | doaj.art-dbeb8a412d4841c4820d667bbc8f345c2022-12-21T21:28:18ZengPress of International Journal of Ophthalmology (IJO PRESS)Guoji Yanke Zazhi1672-51232021-04-0121474274410.3980/j.issn.1672-5123.2021.4.38202104038Characteristics of visual conduction under Top-down perceptual processingAi-Bao Zhou0Hong-Yun Yue1Xian-Cui Liu2Fen Zhang3School of Psychology, the Northwest Normal University, Lanzhou 730070, Gansu Province, ChinaSchool of Psychology, the Northwest Normal University, Lanzhou 730070, Gansu Province, China; Department of Ophthalmology, the 940th Hospital of Joint Logistic Support Force of PLA, Lanzhou 730050, Gansu Province, ChinaSchool of Psychology, the Northwest Normal University, Lanzhou 730070, Gansu Province, ChinaSchool of Psychology, the Northwest Normal University, Lanzhou 730070, Gansu Province, ChinaAIM: To study the visual efficiency and characteristics of Top-down perceptual pathway in children.METHODS: Totally 26 children volunteers in the outpatient department from January to June 2020 were selected. We adopted the photos of children's self-face as the Top-down perceptive fixation point pictures. The N75 time, P100 peak time, P100 amplitude and P100 repolarization time were recorded by graphic visual evoked potential(PVEP)examination.RESULTS: Different visual perception pathway had no significant effect on the latency of N75, while different spatial frequencies have a significant effect on the N75 time. The latency of N75 was prolonged under high frequency spatial stimulation. The interaction between visual perceptual processing path and spatial frequency has a significant effect on the peak time of P100.Under Top-down condition, the peak time of P100 was significantly shortened under high-frequency spatial stimulus. Different visual perception paths and spatial frequencies had significant effects on P100 amplitude, and Top-down perceptual processing and spatial frequencies had significant effects on the time of P100 wave repolarization, while the interaction between processing paths and spatial frequencies had no significant effects.CONCLUSION:Under Top-down visual perceptual, the visual conduction velocity and visual condition efficiency are improved in children's visual process.http://ies.ijo.cn/cn_publish/2021/4/202104038.pdftop-down perception pathwaybottom-up perception pathwaypattern visual evoked potentialself-related visual functionvisual perception |
| spellingShingle | Ai-Bao Zhou Hong-Yun Yue Xian-Cui Liu Fen Zhang Characteristics of visual conduction under Top-down perceptual processing Guoji Yanke Zazhi top-down perception pathway bottom-up perception pathway pattern visual evoked potential self-related visual function visual perception |
| title | Characteristics of visual conduction under Top-down perceptual processing |
| title_full | Characteristics of visual conduction under Top-down perceptual processing |
| title_fullStr | Characteristics of visual conduction under Top-down perceptual processing |
| title_full_unstemmed | Characteristics of visual conduction under Top-down perceptual processing |
| title_short | Characteristics of visual conduction under Top-down perceptual processing |
| title_sort | characteristics of visual conduction under top down perceptual processing |
| topic | top-down perception pathway bottom-up perception pathway pattern visual evoked potential self-related visual function visual perception |
| url | http://ies.ijo.cn/cn_publish/2021/4/202104038.pdf |
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