Reaction time asymmetries between expansion and contraction
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universitat de València
2005
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| _version_ | 1876445497613352960 |
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| author | Joan López-Moliner |
| author_facet | Joan López-Moliner |
| contents | Reaction time asymmetries between expansion and contraction Joan López-Moliner Psicología Different asymmetries between expansion and contraction (radial motions)have been reported in the literature. Often these patterns have been regardedas implying different channels for each type of radial direction (outwardversus inwards) operating at a higher level of visual motion processing. Intwo experiments (detection and discrimination tasks) we report reaction timeasymmetries between expansion and contraction. Power functions were fittedto the data. While an exponent of 0.5 accounted for the expansion databetter, a value of unity yielded the best fit for the contraction data. Instead ofinterpreting these differences as corresponding to different higher ordermotion detectors, we regard these findings as reflecting the fact thatexpansion and contraction tap two distinct psychophysical input channelsunderlying the processing of fast and slow velocities respectively. 2005 artículo científico 0211-2159 https://www.redalyc.org/articulo.oa?id=16926110 en http://www.redalyc.org/revista.oa?id=169 Psicológica application/pdf Universitat de València Psicológica (España) Num.1 Vol.26 |
| format | Artículo científico |
| id | redalyc_16926110 |
| institution | Redalyc |
| language | en |
| publishDate | 2005 |
| publisher | Universitat de València |
| spellingShingle | Reaction time asymmetries between expansion and contraction Joan López-Moliner Psicología Reaction time asymmetries between expansion and contraction Joan López-Moliner Psicología Different asymmetries between expansion and contraction (radial motions)have been reported in the literature. Often these patterns have been regardedas implying different channels for each type of radial direction (outwardversus inwards) operating at a higher level of visual motion processing. Intwo experiments (detection and discrimination tasks) we report reaction timeasymmetries between expansion and contraction. Power functions were fittedto the data. While an exponent of 0.5 accounted for the expansion databetter, a value of unity yielded the best fit for the contraction data. Instead ofinterpreting these differences as corresponding to different higher ordermotion detectors, we regard these findings as reflecting the fact thatexpansion and contraction tap two distinct psychophysical input channelsunderlying the processing of fast and slow velocities respectively. 2005 artículo científico 0211-2159 https://www.redalyc.org/articulo.oa?id=16926110 en http://www.redalyc.org/revista.oa?id=169 Psicológica application/pdf Universitat de València Psicológica (España) Num.1 Vol.26 |
| title | Reaction time asymmetries between expansion and contraction |
| topic | Psicología |
| url | https://www.redalyc.org/articulo.oa?id=16926110 |