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

different cultural backgrounds, Wei Bu, Tian Yue Liu, Liaoning Normal University, China
This research is to explore the characteristics of the orientation of achievement motivation among
130 college students from Han, Chao,Hui nations in Dalian by the questionnaire. The results show
that mainly individual-orientation of achievement motivation explicitly found in the three nations
and no significant differences shown in the other two dimensions the paper originally
hypothesized. Therefore, the research also indicates that no significant differences in the
dimensions among sex, town &countryside, only & non-only children influencing the course of
the orientation of achievement motivation.
3098 ORAL
Behavioral and cognitive neuroscience
Chair: Daiichiro Nakahara, Japan
3098.1 Nicotinic blockers and brain-stimulation reward, Daiichiro Nakahara, Masato
Nakamura, Taro Takahashi, Tomoya Kawamura, Department of Psychology, Hamamatsu
University School of Medicine, Japan
We used the rate-frequency curve-shift procedure to evaluate the effects of nicotinic blockers
locally infused into the mesopontine tegmentum or the ventral tegmentum on the threshold of
brain stimulation reward. Mecamylamine, the blocker of nicotinic acetylcholine receptors, was
infused one hour before the self-stimulation of the medial forebrain bundle. When injected into the
mesopontine tegmentum, mecamylamine sifted rate-frequency curves to the right. Similar effects
were also observed when the drug was injected into the ventral tegmentum. Thus, in both the
mesopontine tegmentum and the ventral tegmentum, nicotinic receptors appear to facilitate the
rewarding effect of the self-stimulation.
3098.2 The ability of acute corticosterone to facilitate morphine-induced conditioned
locomotion activity can be dissociated from its effects on conditioned place preference, Yonghui
Li, Xigeng Zheng, Xiaojing Luo, Nan Sui, Key laboratory of mental health, Institute of
Psychology, Chinese Academy of Sciences, China
There is evidence that the biological mechanism of psychomotor stimulant properties is the same
as that of rewarding effects of addictive drugs. However, whether this relationship also exists
between conditioned place preference and conditioned locomotion activity remains unclear. Male
SD rats were investigated the effect of acute corticosterone on morphine-induced CPP and
conditioned locomotion activity. It indicated that corticosterone increased acute psychomotor
activity and conditioned psychomotor activity of morphine-treated rats, but inhibited the
acquisition of morphine-induced CPP, The results suggested that the biological mechanism of CPP
may be different from, at least under acute stress, that of conditioned locomotor activity.
3098.3 Effect of Glu and NMDAR1 on prefrontal cortex executive control of rats, Yanzhang Li,
Min Li, the Third Military Medical University, China
To explore the effect of Glu and NMDAR1 on prefrontal cortex executive control of rats. The
techniques of Amino acid analysis, immunohistochemistry and in situ hybridization were used to
measure Glu content, Glu-IR positive neurons and NMDAR1mRNA expression. Results:
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