This study examined hypnotizability-related modulation of the cortical network following expected and nonexpected nociceptive stimulation. The electroencephalogram (EEG) was recorded in 9 high (highs) and 8 low (lows) hypnotizable participants receiving nociceptive stimulation with (W1) and without (noW) a visual warning preceding the stimulation by 1 second. W1 and noW were compared to baseline conditions to assess the presence of any later effect and between each other to assess the effects of expectation. The studied EEG variables measured local and global features of the cortical connectivity. With respect to lows, highs exhibited scarce differences between experimental conditions. The hypnotizability-related differences in the later processing of nociceptive information could be relevant to the development of pain-related individual traits. Present findings suggest a lower impact of nociceptive stimulation in highs than in lows.

这项研究检查了预期和非预期的伤害性刺激后皮层网络的催眠相关调制。脑电图 (EEG) 记录了 9 个高 ( highs ) 和 8 个低 ( lows)) 可催眠的参与者接受伤害性刺激（W1）和没有（现在）在刺激前 1 秒的视觉警告。将 W1 和现在与基线条件进行比较，以评估是否存在任何后期影响，并在彼此之间评估预期的影响。研究的 EEG 变量测量了皮质连接的局部和全局特征。关于低点，高点在实验条件之间表现出很小的差异。疼痛信息后期处理中与催眠相关的差异可能与疼痛相关个体特征的发展有关。目前的研究结果表明，伤害性刺激在高点的影响低于低点。