2008年3月
Early development of sensitivity to radial motion at different speeds
EXPERIMENTAL BRAIN RESEARCH
- ,
- ,
- 巻
- 185
- 号
- 3
- 開始ページ
- 461
- 終了ページ
- 467
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s00221-007-1170-2
- 出版者・発行元
- SPRINGER
We examined the sensitivity of 2- and 3-month-old infants to radial expansion/contraction at various speeds. The stimuli comprised one radial motion pattern (expansion or contraction) and one translational motion pattern (up, down, left or right; counterbalanced across infants) placed side by side. The two patterns in each stimulus had the same speed. Three-month-old infants could discriminate between radiation and translation, even under relatively low speeds (5.31 and 2.66 degrees/s), whereas discrimination between the two patterns by 2-month-old infants was very limited. Thus, the range of speeds at which infants can detect radial expansion/contraction changes extensively between 2 and 3 months of age. This change in radial motion sensitivity may reflect the development of cortical motion mechanisms in the dorsal pathway, which is specialised to detect radial motion.
- リンク情報
- ID情報
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- DOI : 10.1007/s00221-007-1170-2
- ISSN : 0014-4819
- Web of Science ID : WOS:000253128500010