Psychological Research

Independent first- and second-order motion energy analyses of optic flow

David R. Badcock, Sieu K. Khuu

Do people combine the parity- and five-rule checking strategies in product verification?

Christel Masse, Patrick Lemaire

Human performance on visually presented Traveling Salesman problems

Douglas Vickers, Marcus Butavicius, Michael Lee, Andrei Medvedev

Learning complex sequences: no role for observation?

Stephen W. Kelly, A. Mike Burton

Hemispheric specialization in quantification processes

Margherita Pasini, Alessia Tessari

Illusory smoke and dazzling fog

Luca Tommasi, Daniele Zavagno, Giorgio Vallortigara

Motor learning enhances perceptual judgment: a case for action-perception transfer

Heiko Hecht, Stefan Vogt, Wolfgang Prinz

Negative priming from activation of counting and addition knowledge

Michael A. Stadler, David C. Geary, Mary E. Hogan

Imagined body orientation and perception of the visual vertical

Sophie Mertz, Jean-Claude Lepecq

Psychological Research from 1996 to 2000

Johannes Engelkamp

Editorial