28th International Congress of Psychology August 8 ... - U-netSURF

actually share common mechanisms. A theory was provided to account for PFI and MIB in
particular and perceptual fading phenomena in general. In this theory, perceptual grouping,
figure-ground segregation, boundary adaptation, surface formation and surface competition each
play different roles in perceptual fading.
1039.6 Inhibition of return persists longer on repeated locations, H.F. Chao, Y.Y. Yeh, National
Taiwan University, Taipei, Taiwan, China
It takes longer time for people to revisit recently examined locations. This effect is named
inhibition of return. In this study, a simple dot-detection task was used. The dot was presented in
one cell of an invisible 15X15 matrix. Experiment 1 showed that inhibition of return could be
found on locations that were repeatedly used in one experimental session, but not on locations that
were used only once. By varying cue-to-probe stimulus onset asynchrony, Experiment 2 indicated
that inhibition of return persisted longer on repeated locations. The role of memory in inhibition of
return was discussed.
1040 INVITED SYMPOSIUM
Frontiers in prospective memory research
Convener and Chair: P. Graf, Canada
1040.1 Metamemory for prospective and retrospective memory tasks, L. Kvavilashvili, K.
Taylor, University of Hertfordshire, Hatfield, UK
In this paper the possible relationship between prospective and retrospective memory will be
assessed by examining the accuracy of metamemory predictions of one's performance in
prospective and retrospective memory tasks. The results show that while young children were very
accurate in predicting whether they would remember to do something later on in the experiment (a
prospective memory task) they were considerably overestimating their performance in a task of
free recall of pictures (a retrospective memory task). This finding speaks in favour of early
development of metamemory awareness for prospective memory tasks in comparison to
retrospective memory and is indicative of possible dissociations in underlying mechanisms of
these two forms of memory.
1040.2 Age-related changes in event-cued prospective memory, B. Uttl, University of Tsukuba,
Tsukuba City, Japan
Age-related changes in visual and auditory event-cued prospective memory (ProM) were
examined. To assess visual ProM, participants were shown a series of pictures, with one defined as
the ProM cue, while simultaneously making A/B decisions. Similarly, to assess auditory ProM,
participants were played various sounds, with one defined as the ProM cue. Cue display size and
cue loudness were increased gradually across trials until participants responded, such that cue size
and loudness served as an effective index of ProM. Both visual and auditory ProM declined with
age due to changes in peripheral as well as central processing.
1040.3 Mechanisms underlying importance effects in prospective remembering, M. Kliegel,
Universität Zürich, Zürich, Switzerland
Only a few studies have experimentally examined the influence of perceived task importance on
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