1. An analysis of the monaural displacement of sound in space

   • Robert A. Butler

   OriginalPaper Pages: 1 - 7

2. The homogeneity effect in counting

   • Robert W. Frick

   OriginalPaper Pages: 8 - 16

3. Interaction of signal discriminability and task type in vigilance decrement

   • Raja Parasuraman
   • Mustapha Mouloua

   OriginalPaper Pages: 17 - 22

4. Allocation of visual attention in good and poor readers

   • Julie R. Brannan
   • Mary C. Williams

   OriginalPaper Pages: 23 - 28

5. Speed of apparent motion and the wagon-wheel effect

   • David J. Finlay
   • Peter C. Dodwell

   OriginalPaper Pages: 29 - 34

6. Saccadic eye movements and the perception of visual direction

   • Wayne Hershberger

   OriginalPaper Pages: 35 - 44

7. Outline- and solid-angle orientation illusions have different determinants

   • Peter Wenderoth
   • Tony O’Connor

   OriginalPaper Pages: 45 - 52

8. Relative motion: Kinetic information for the order of depth at an edge

   • Albert Yonas
   • Lincoln G. Craton
   • William B. Thompson

   OriginalPaper Pages: 53 - 59

9. The interaction between stimulus variations and age trends in the Poggendorff illusion

   • Joan S. Girgus
   • Stanley Coren

   OriginalPaper Pages: 60 - 66

10. Overall brightness decrease observed in the Ehrenstein illusion induced for both contrast polarities

    • Jiro Hamada

    OriginalPaper Pages: 67 - 72

11. Tonal fusion of consonant musical intervals: The oomph in Stumpf

    • Lucinda A. Dewitt
    • Robert G. Crowder

    OriginalPaper Pages: 73 - 84

12. Notices and Announcements

    Announcement Pages: 85 - 86