Interactions between simultaneous contrast and adaptation to gradual change of luminance 487 – 495
Stuart M Anstis
Salt taste detection: an R-index approach to signal-detection measurements 497 – 506
Michael O'Mahony, Laura Gardner, Denise Long, Christi Heintz, Barbara Thompson, Mary Davies
Genetic and environmental factors in orientation anisotropy: a field study in the British Isles 507 – 521
Helen E Ross, J Margaret Woodhouse
A test for contrast-polarity selectivity in the tilt aftereffect 523 – 528
Svein Magnussen, Wolfgang Kurtenbach
The effect of spatial frequency and contrast on visual persistence 529 – 539
Alison Bowling, William Lovegrove, Barry Mapperson
Decrease in metacontrast masking following adaptation to flicker 541 – 547
Susan Petry, Antony Grigonis, Bernard Reichert
Pattern and flicker detection examined in terms of the nasal-temporal division of the retina 549 – 555
Randolph Blake, Jamie Mills
Exposure-time and spatial-frequency effects in the tilt illusion 557 – 564
Brian I O'Toole
Angle-matching illusions and perceived line orientation 565 – 575
Peter Wenderoth, Dennis White
Recognition of upright and inverted faces: a correlational study 577 – 583
Richard J Phillips, Richard E Rawles
Random-dot stereograms of real objects: observations on stereo faces and moulds 585 – 588
Mark A Georgeson
The nonequivalence of abrupt and diffuse illusory contours 589 – 593
Barry L Richardson
Frequency, phase, and colour coding in apparent motion: 2 595 – 602
David Finlay, Terry Caelli
Review 603 – 604
Humour 605
