Table 2.

Heart rate across experimental conditions

Before*During
Alert control 35°C64.4 ± 3.364.8 ± 3.9
Alert control 47°C65.0 ± 3.468.9 ± 4.0
Hypnosis control 35°C66.2 ± 4.666.1 ± 4.6
Hypnosis control 47°C66.2 ± 4.469.5 ± 4.4
Increased-pain intensity67.1 ± 4.270.9 ± 3.8
Decreased-pain intensity65.8 ± 3.869.4 ± 3.7
  • Values are expressed as heart rate in beats per minute as means ± SD.

  • *  One-minute period immediately before application of pain stimulus;

  •  one-minute period of hand in water bath.