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

performance is more dependent on the ratio of the smaller set to the larger set than it is on the
magnitude of individual sets. We presented computerized analogues of these tasks to adult humans
and inhibited counting processes through articulatory suppression. The resulting performance
mirrored that of the chimpanzees with correct selections of the larger set decreasing as the ratio
between sets increased. This indicates that similar processes may underlie human and nonhuman
animal estimation.
1080.6 The role of sex in sichuan golden monkeys’ threat calls, Linlin Yi 1 , Yanjie Su 1 , Junhua
Qiu 2 , Shuzhong Xia 2 , Xinchen Liu 2 , 1 Peking University; 2 Shanghai Wild Animal Park, China
This study aimed to explore the role of sex factor in Sichuan golden monkey’s (R. roxellana) vocal
communication. By means of acoustic analyses, it was found that males’ threat calls were
significantly different from females’. In the playback experiments, results showed that the sex of
callers and the sex of subjects interacted with each other, i.e. sex of callers made a significant
influence on males, while almost nothing on females. It is suggested that Sichuan Golden
Monkeys could perceive sex cues through acoustic communication, and sex factor played an
important role in the process of conveying threat information.
1080.7 The role of social factors on animal behaviors, Mein-Woei Suen 1 , Ray-Mein Liao 2 ,
Jeaw-Mei Chen 2 , 1 University of Birmingham, UK; 2 National Chengchi University, Taiwan, China
Incorporating both social and physiological psychological research paradigms, three experiments
were conducted in the present study on 220 male rats. Major findings were as follows: (1) There
were noticeable effects among different housing experiences on operant conditioned behavior and
basic physiological measures. (2) Social facilitation effects (on well-learned FR20 behavior, with
observer) were found in group-based rats. (3) A Social loafing effect (by group-reinforcement) on
operant behavior was found in some combinations of housing experience and conditioning tasks.
Significant implications of the present results on animals’ social behaviors are discussed. (either
oral or poster presentation).
1080.8 Stress-protective effect of glucose injection on behaviour, Kathrine P. Vinogradova 1 ,
Dmitry A. Zhukov 2 , 1 St.Peterburg State University, Russian Federation; 2 Pavlov Institute of
Physiology, Russian Federation
The search of new safety stress protective drugs is an important problem of the present. Anxiety
levels in rats were determined before and after exposition exposition to mild stress. The glucose
was injected just immediately after stress. Rats with glucose injection showed slight individual
changes in anxiety and locomotion in second test. In control groups injection or especially stress
induce significant individual changes of behaviour. Essential distinctions of anxiety in control may
be caused by various influence of stress on person with different coping style. The present data
suggest the stress-protective effect of glucose being injected just after aversive event.
1081 ORAL
Behavioral and cognitive neuroscience
Chair: Ying Zhu, China
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