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

Assessing whether a video-based cognitive skills training intervention, cognitive ability,
personality, or motivation, have significant effects on the learning potential (LP) of South African
culturally diverse, disadvantaged grade 10 learners. Participants (N=120) were tested on Raven's
SPM, the PMT motivation test, Cattell's CFIT and Cattell's HSPQ. A Solomon four groups
experimental design controlled effects of pre-test practice on post-test scores. The LP (SPM
difference scores) increased significantly after the video-based intervention. HSPQ scores G+, I-,
O+ and PMT self-assertiveness, accounted for moderate variance in LP scores. The latter were
independent of pre-test CFIT scores.
3082 ORAL
Attention and perception
Chair: Eric Soetens, Belgium
3082.1 Endogenous and exogenous cueing of feature and conjunction search, Eric Soetens,
Natacha Deroost, Inge Zeeuws, David Henderickx, University of Brussels, Belgium
According to the FIT spatial attention is needed to bind stimulus features. Because attention can
be oriented by sudden stimulus onset (exogenous) or by instruction (endogenous), we investigated
whether both types of cues interacted with stimulus binding. Subjects detected a target in one of
two letterstrings of 3 to 5 letters presented left and right of fixation. The target differed in size
(feature search) or in a combination of size and identity (conjunction), while cue-target interval
was manipulated. Cue validity and search type interacted similarly for exogenous and endogenous
cues, suggesting that both influence stimulus binding in a likewise manner.
3082.2 Facing changes: Choice blindness and facial attractiveness, Petter Johansson 1 , Lars
Hall 1 , Sverker Sikstrom 1 , Andreas Olsson 2 , 1 Lund University Cognitive Science, Sweden; 2 New
York University, USA
The phenomenon of Change Blindness has received a lot of attention lately, but very few
experiments have examined the effects of the subjective importance of the visual stimuli presented.
We have addressed this question in a series of experiments by introducing choice as a critical
variable in change detection.
3082.3 Viewpoint dependence and category learning, Guomei Zhou, William G. Hayward,
Chinese University of Hong Kong, Hong Kong, China
Several theorists have suggested that viewpoint slopes in object recognition are mediated by the
difficulty of object discriminations. However, Hayward and Williams (2000) found almost
identical viewpoint cost functions across contexts that varied in difficulty. The effect of learning
on this result is unclear. In the present study, some subjects learned category discriminations for a
set of objects; other subjects received no such category learning. Results of a later sequential
matching task showed that the slope of the viewpoint-cost function was flatter for the category
learning group than for the group who had no category learning.
3082.4 A specific area in monkey brain like LOC in human brain, Zheng Shen, Tichjun Jing,
Hui Yu, Peking University, China
683