Effects of Psychological Stress on Autonomic Control of Heart in Rats

この論文にアクセスする

この論文をさがす

著者

抄録

The aim of this study was to examine the effects of psychological stress on autonomic control of the heart in rats. For this purpose, we evoked anxiety-like or fear-like states in rats by means of classical conditioning and examined changes in autonomic nervous activity using an implanted telemetry system and power spectral analysis of heart rate variability. Anxiety-like states resulted in a significant increase in heart rate (HR), low frequency (LF) power, and LF/HF ratio, with no change in high frequency (HF) power. Fear-like states resulted in a significant increase in HR and a significant decrease in HF power with no significant change in both LF power and LF/HF ratio, although LF/HF ratio increased slightly. These results suggest that autonomic balance becomes predominant in sympathetic nervous activity in both anxiety-like and fear-like states. These changes in rats correspond to changes which are relevant to cardiovascular diseases in humans under many kinds of psychological stress. Therefore, the experimental design of this study is a useful experimental model for investigating the effects of psychological stress on autonomic control of the heart in humans.<br>

収録刊行物

  • Experimental animals

    Experimental animals 53(4), 373-378, 2004-07

    公益社団法人 日本実験動物学会

参考文献:  21件中 1-21件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10013441716
  • NII書誌ID(NCID)
    AA11032321
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13411357
  • NDL 記事登録ID
    7017058
  • NDL 雑誌分類
    ZS7(科学技術--医学)
  • NDL 請求記号
    Z54-H752
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ