• Title/Summary/Keyword: aversive stimulus

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Analysis of Heart Rate Variability in Constitution Types During Active and Passive Coping Caused dy Electroacupuncture (통증으로 유발한 능동 및 수동 대처상황에서 체질에 따른 Heart Rate Variability 분석)

  • Kim Jin-Keun;Jang Kyeong-Seon;Lee Sang-Kwan
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.1
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    • pp.115-124
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    • 2006
  • The purpose of this study is to investigate the relationships between the biological base of coping strategy and the different constitutions. First of all, subjects were divided in to 3 groups dy Questionnaire for the Sasang Constitution Classification II and Yin-Yang Property Analysis. Then each group was assigned into two experimental coping conditions, active and passive condition, in turn. The SDNN(The Standard Deviation of the NN Intervals) of HRV(Heart rate variability) index was estimated from two conditions after giving a aversive pain stimulus. The results of the study were as follows 1. The interaction between constitution and coping condition is significant(p<0.05). 2. The SDNNs of Shaoyangren are higher than those of Taiyinren under passive condition but it was opposite under active condition(p<0.05). 3. The main effect of constitution is also significant but that of coping condition is not significant. 4. Thee Shaoyangren is higher than Shaoyinren in multiple comparisons(p<0.05). 5. The interaction between Yin-Yang constitution and coping condition is significant and the main effect of only constitution is significant(p<0.05). According to these results, different constitution can respond differently to coping condition and It is highly related to biological mechanism associated with two basic coping strategies.

Eurycoma longifolia Increases Sexual Motivation in Sexually Naive Male Rats

  • Ang, Hooi-Hoon;Sim, Meng-Kwoon
    • Archives of Pharmacal Research
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    • v.21 no.6
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    • pp.779-781
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    • 1998
  • The aim of this study is to provide evidence on the aphrodisiac property of Eurycoma longifolia Jack. An electric grid was used as an obstruction in the electrical copula tion cage in order to determine how much an aversive stimulus the sexually naive male rat for both the treated with E. longifolia Jack and control groups were willing to overcome to reach the estrous receptive female in the goal cage. The intensity of the grid current was maintained at 0.12mA and this was the intensity in which the male rats in the control group failed to crossover to reach the goal cage. Results showed that E. longifolia Jack continued to enhance and also maintain a high level of both the total number of successful crossovers, mountings, intromissions and ejaculations during the 9-12 th week observation period. In conclusion, these results further enhanced and strenghtened the aphrodisiac property of E.longifolia Jack.

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PHYSIOLOGICAL INDICATORS OF EMOTION AND ATTENTION PROCESSES DURING AFFECTIVE AND ORIENTING AUDITORY STIULATION (청각자극에 의해 유발된 정서 및 주의반응의 생리적 지표)

  • Estate M. Sokhadze
    • Proceedings of the Acoustical Society of Korea Conference
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    • 1998.06c
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    • pp.291-296
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    • 1998
  • In the experiment carried out on 20 college students, recorded were frontal, temporal and occipital EEG, skin conductance response, skin conductance level, heart rate and respiration rate during listening to two music fragments with different affective valences and white noise administered immediately after negative visual stimulation. Analysis of physiological patterns observed during the experiment suggests that affective auditory stimulation with music is able to selectively modulate autonomic and cortical activity evoked by preceding aversive visual stimulation and to restore initial baseline levels. On other hand, physiological responses to white noise, which does not possess emotion-eliciting capabilities, evokes response typical for orienting reaction after the onset of a stimulus and is rapidly followed by habituation. Observed responses to white noise were similar to those specific to attention only and had no evidence for any emotion-related processes. Interpretation of the obtained data is considered in terms of the role of emotional and orienting significance of stimuli, dependence of effects on the background physiological activation level and time courses of attention and emotion processes. Physiological parameters are summarized with regard to their potential utility in differentiation of psychological processes induced by auditory stimuli.

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