Vertical-size disparities are temporally integrated for slant perception

Kazuho Fukuda, Hirohiko Kaneko, Kazumichi Matsumiya

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We investigated temporal properties of vertical-size and horizontal-size disparity processing for slant perception. Subjects indicated perceived slants for a stereoscopic stimulus in which the two magnitudes of vertical-size or horizontal-size disparities were oscillated stepwise with various frequencies (from 0.2 to 10 Hz). For the stimulus with vertical-size disparity oscillation, two slants corresponding to the two magnitudes of disparity were perceived for low-frequency conditions, whereas only a static mean slant of the two slants was perceived for high frequencies (5 and 10 Hz). For the stimulus with horizontal-size disparity oscillation, two slants were perceived for all the temporal frequency conditions. These results indicate that temporal properties of vertical- and horizontal-size disparity processing are clearly different and vertical-size disparities are temporally integrated over a period of around 500 ms for slant perception.

Original languageEnglish
Pages (from-to)2749-2756
Number of pages8
JournalVision Research
Issue number17
Publication statusPublished - 2006 Sept


  • Induced effect
  • Slant perception
  • Temporal integration
  • Temporal property
  • Vertical disparity


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