1. Cognitive processing of uncertainty: Its effect on pupillary dilation and preference ratings

   • Robin W. Prati

   OriginalPaper Pages: 193 - 198

2. Statistical properties of staircase estimates

   • Richard M. Rose
   • Davida Y. Teller
   • Paula Rendleman

   OriginalPaper Pages: 199 - 204

3. Form identification in peripheral vision

   • George W. Menzer
   • John B. Thurmond

   OriginalPaper Pages: 205 - 209

4. Apparent combined length of two-line and four-line sets

   • Lester E. Krueger

   OriginalPaper Pages: 210 - 214

5. Visual perception of rapidly presented word sequences of varying complexity

   • Kenneth I. Forster

   OriginalPaper Pages: 215 - 221

6. Adaptation to rearranged eye-foot coordination

   • H. H. Mikaelian

   OriginalPaper Pages: 222 - 224

7. Psychophysical scales of apparent heaviness and the size-weight illusion

   • Joseph C. Stevens
   • Lee L. Rubin

   OriginalPaper Pages: 225 - 230

8. Effect of stimulus duration on perceptual onset and offset latencies

   • Robert Efron

   OriginalPaper Pages: 231 - 234

9. Orientation specificity in chromatic adaptation of human “edge-detectors”

   • L. S. Fidell

   OriginalPaper Pages: 235 - 237

10. Negation: A rejoinder to Wales and Grieve

    • Judith M. Greene
    • P. C. Wason

    OriginalPaper Pages: 238 - 239

11. Effort in isometric muscular contractions related to force level and duration

    • Joseph C. Stevens
    • William S. Cain

    OriginalPaper Pages: 240 - 244

12. Safari to masking land: A hunt for the elusive U

    • Charles W. Eriksen
    • Barbara B. Becker
    • James E. Hoffman

    OriginalPaper Pages: 245 - 250

13. Perceived angle of incidence and achromatic surface color

    • Howard R. Flock
    • Edmund Freedberg

    OriginalPaper Pages: 251 - 256