1. What is the diplopia threshold?

   • A. L. Duwaer
   • G. Van Den Brink

   OriginalPaper Pages: 295 - 309

2. Nonlocal determination of brightness in spatially periodic patterns

   • Lawrence E. Arend
   • Robert V. Lange
   • Barbara L. Sandick

   OriginalPaper Pages: 310 - 316

3. The elemental hues of short-wave and extraspectral lights

   • Kenneth Fuld
   • B. R. Wooten
   • James J. Whalen

   OriginalPaper Pages: 317 - 322

4. The perceptual onset of musical tones

   • Joos Vos
   • Rudolf Rasch

   OriginalPaper Pages: 323 - 335

5. Segregation of cognitive and motor aspects of visual function using induced motion

   • Bruce Bridgeman
   • Marc Kirch
   • Alan Sperling

   OriginalPaper Pages: 336 - 342

6. Hemispheric differences in semantic processing: Category matching is not the same as category membership

   • Peter J. Urcuioli
   • Raymond M. Klein
   • James Day

   OriginalPaper Pages: 343 - 351

7. Two-dimensional filtering, oriented line detectors, and figural aspects as determinants of visual illusions

   • E. G. J. Eijkman
   • H. J. Jongsma
   • J. Vincent

   OriginalPaper Pages: 352 - 358

8. A quantitative analysis of sequential effects with numeric stimuli

   • Mark Wagner
   • John C. Baird

   OriginalPaper Pages: 359 - 364

9. The rod-and-frame illusion in erect and supine observers

   • Donald R. Goodenough
   • Philip K. Oltman
   • Patricia W. Cox

   OriginalPaper Pages: 365 - 370

10. Towards a behavioral theory of bias in signal detection

    • Dianne Mccarthy
    • Michael Davison

    OriginalPaper Pages: 371 - 382

11. Effects of target monitoring on understanding fluent speech

    • Michelle A. Blank
    • David B. Pisoni
    • Cynthia L. Mcclaskey

    OriginalPaper Pages: 383 - 388

12. The effects of stimulus numerosity, retinal location, and rod contrast on perceived duration of brief visual stimuli

    • Gerald M. Long
    • Robert J. Beaton

    OriginalPaper Pages: 389 - 394

13. Perception of acoustic iterance: Pitch and infrapitch

    • Richard M. Warren
    • James A. Bashford

    OriginalPaper Pages: 395 - 402

14. Extraretinal signals combine with induced motion: A note

    • K. Prazdny
    • Mike Brady

    Notes and Comment Pages: 403 - 406

15. Catastrophe theory and brightness judgments

    • Thomas J. Ayres

    Notes and Comment Pages: 407 - 407

16. Announcements

    Announcement Pages: 408 - 408