Department of Psychology, University of Guelph Guelph, ON, Canada.
Front Psychol. 2012 Dec 26;3:575. doi: 10.3389/fpsyg.2012.00575. eCollection 2012.
The motivational incentive of reward-related stimuli can become so salient that it drives behavior at the cost of other needs. Here we show that response inhibition applied during a Go/No-go task not only impacts hedonic evaluations but also reduces the behavioral incentive of motivationally relevant stimuli. We first examined the impact of response inhibition on the hedonic value of sex stimuli associated with strong behavioral-approach responses (Experiment 1). Sexually appealing and non-appealing images were both rated as less attractive when previously encountered as No-go (inhibited) than as Go (non-inhibited) items. We then discovered that inhibition reduces the motivational incentive of sexual appealing stimuli (Experiment 2). Prior Go/No-go status affected the number of key-presses by heterosexual males to view erotic-female (sexually appealing) but not erotic-male or scrambled-control (non-appealing) images. These findings may provide a foundation for developing inhibition-based interventions to reduce the hedonic value and motivational incentive of stimuli associated with disorders of self-control.
奖励相关刺激的动机激励作用可能变得非常突出，以至于它会以牺牲其他需求为代价驱动行为。在这里，我们表明，在 Go/No-go 任务中进行的反应抑制不仅会影响享乐评估，还会降低与动机相关刺激的行为激励。我们首先研究了反应抑制对与强烈行为趋近反应相关的性刺激的享乐价值的影响（实验 1）。当以前作为 No-go（抑制）项而不是 Go（非抑制）项遇到时，性吸引人的和非吸引人的图像都被评为吸引力较低。然后我们发现，抑制会降低性吸引人的刺激的动机激励作用（实验 2）。先前的 Go/No-go 状态会影响异性恋男性观看色情女性（性吸引人）而不是色情男性或乱序控制（非吸引人）图像的按键次数。这些发现可能为开发基于抑制的干预措施提供基础，以降低与自我控制障碍相关的刺激的享乐价值和动机激励。
