1. The roles of convergence and apparent distance in depth constancy with motion parallax

   • Josée Rivest
   • Hiroshi Ono
   • Shinya Saida

   OriginalPaper Pages: 401 - 408

2. Time judgments of musical endings: Effects of expectancies on the “filled interval effect”

   • Arilyn Boltz

   OriginalPaper Pages: 409 - 418

3. Negative afterimages and the McCollough effect

   • R. H. Day
   • W. R. Webster

   OriginalPaper Pages: 419 - 424

4. Obstacle perception by ongenitally blind children

   • Daniel H. Ashmead
   • Everett W. Hill
   • Charles R. Talor

   OriginalPaper Pages: 425 - 433

5. Estimating psychometric functions in forced-choice situations: Significant biases found in threshold and slope estimations when small samples are used

   • J. K. O’regan
   • R. Humbert

   OriginalPaper Pages: 434 - 442

6. Spatial frequencies and the cerebral hemispheres: Contrast sensitivity, visible persistence, and letter classification

   • David H. Peterzell
   • Lewis O. Harvey
   • Curtis D. Hardyck

   OriginalPaper Pages: 443 - 455

7. Feature-based search asymmetries in pigeons and humans

   • Susan E. Allan
   • Donald S. Blough

   OriginalPaper Pages: 456 - 464

8. Pictorial depth and the Poggendorff illusion

   • Theodore E. Parks
   • Lumei Hui

   OriginalPaper Pages: 465 - 468

9. Effect of structured visual environments on apparent eye level

   • Arnold E. Stoper
   • Malcolm M. Cohen

   OriginalPaper Pages: 469 - 475

10. Search performance without eye movements

    • Raymond Klein
    • Mark Farrell

    OriginalPaper Pages: 476 - 482

11. An explanation for the presentation-order effect in the method of constant stimuli

    • Sergio Cesare Masin
    • Valentina Fanton

    OriginalPaper Pages: 483 - 486

12. The perceptual segregation of simultaneous auditory signals: Pulse train segregation and vowel segregation

    • Magdalene H. Chalikia
    • Albert S. Bregman

    OriginalPaper Pages: 487 - 496

13. Reply to Beck and Ivry

    • Sergio Cesare Masin

    Notes and Comment Pages: 497 - 497

14. A new model to explain the redundant-signals effect

    • W. Schwarz

    Notes and Comment Pages: 498 - 500

15. The relation between apparent extent and alignment in the Poggendorff illusion: A response to “No evidence for apparent extent between parallels as the basis of the Poggendorff effect,” by Day, Jolly, and Duffy

    • Suzanne Greist-Bousquet
    • H. R. Schiffman
    • Janet Davis

    Notes and Comment Pages: 501 - 504

16. 13th European Conference on Visual Percepion — ECVP 90 Paris, France September 4–7, 1990

    Announcement Pages: 504 - 504