First International Workshop on Attention and Cognition


要旨: 脳は時間の情報をどのように処理しているのだろうか。本講演では我々が最 近発見した、「腕を交差させると手に与えられた2刺激の主観的な順序が逆転する」という現象、および「腕を交差させずにスティックを交差させただけでも同様に主観的な時間順序が逆転する」という現象を紹介する。それらの結果から、脳内で『時間』と『空間』がいかに関連しあって処理がされていくのかについて我々の仮説を紹介し議論していきたい。

Vincent Di Lollo (University of British Columbia)
Appearances are deceiving:A lifetime of theoretical debunking
After a brief report on my current interest in attentional switching and input filtering in visual search, I will present a backward glance over a multifaceted research career. This involves excursions in such areas as the ocean tides in Western Australia, animal learning (contrast effects following shifts in amount of reward), psychophysics (contrast effects following shifts in stimulus range; coherent motion perception), and temporal integration in vision (iconic memory; visible persistence). Throughout the talk I will dwell on some anecdotes that motivated these studies and produced occasional headaches that could be fixed only with additional experimentation.

Brian Scholl (Department of Psychology, Yale University)
Perceiving Persisting Objects
Visual experience consists of more than individual snapshots of the world: we must bind these discrete snapshots over time into a coherent dynamic experience. Not only must we perceive objects, but we must see them as the *same* objects over time and motion. While a tremendous amount of research has explored static object representations, surprisingly little has focused on the factors which underlie the representation of persisting objects, beyond low-level motion mechanisms. I will describe and demonstrate several new studies which attempt to determine (1) the underlying 'rules' by which the visual system determines when objects do and do not persist; and (2) the additional rules which help determine 'which went where', in situations involving multiple moving objects. These studies will span several types of subject populations, and several different areas of vision science -- including object-based attention, object-specific priming, attentive tracking, and the perception of causality.