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

of Biostatistics, University of Copenhagen, Denmark
The validity of a Chinese test for reading comprehension is analyzed by item analysis using
loglinear Rasch models permitting uniform differential item functioning (DIF) and uniform local
dependence (LD). The analysis focuses on DIF relative to home language (linguistic area, Sinitic
language) and grade (year, class). Different ways of dealing with uniform DIF and LD are
discussed. Finally, a reduced test from which all biased items are excluded, is proposed.
4149.4 The effects of learner-generated diagrams on understanding and application of dynamic
knowledge in explanatory text, Shu Mu, Rude Liu, Hua Shu, College of Psychology, Beijing
Normal University, China
One hundred and twelve college students were divided into four groups according to two pairs of
conditions (learner-generated diagrams vs. learner-generated summaries; while reading text vs.
while answering questions). They were asked to read two explanatory texts both about dynamic
knowledge but different in the levels of difficulty, and then answer some multiple-choice questions
related to understanding and application of the knowledge in the text. The results showed that the
learner-generated diagrams while reading can significantly facilitate the understanding to the more
difficult text; the learner-generated diagrams while answering questions can significantly facilitate
the application to the less difficult text.
4150 ORAL
Behavioral and cognitive neuroscience
Chair: Lynnette Mason, Australia
4150.1 Are general mood states related to immunity in healthy persons? Ahmad Alipour,
Academic member, Iran
In this study the attempt has been made to investigate the relationship between general mood
states and immunity. Following the administration BDI and OHI on 200 normal subjects,
60(healthy male aged 20-35) were randomly selected while being assigned into three groups:
happy, normal and sad (each 20 subjects). The LTT (proliferation T-cell to PHA mitogene) and the
percent of CD3+, CD4+, CD8+ and CD56+ were measured after gathering sample blood of
subjects. Analysis indicated a significant difference among groups in terms of LTT (alpha=. 05)
and the explanation for this significant in lies in the improved immunity in happy persons.
4150.2 Neural networks of motor learning: Analyzing function through behavior, George
Andrew James 1 , Yiyuan Tang 2 , Yijun Liu 1 , 1 University of Florida, USA, 2 Dalian University of
Technology, China
We have developed a novel, behavior-driven method for functional connectivity analysis of
neuroimaging data. Participants underwent implicit and explicit motor learning with the serial
reaction time task. Their behavioral reaction time (RT) measures were then inserted as artificial
voxels in the corresponding functional images for use as connectivity seed points. For explicit
learning, decreases in RT strongly correlated with increased activity of the basal ganglia,
cerebellum, M1/S1, SMA, and prefrontal cortex. The implicit learning pattern was similar but with
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