Department of Psychology, Uskudar University, Haluk Turksoy sok. No:14, Altunizade, Istanbul, Turkey.
Psychiatry Unit, NPIstanbul Brain Hospital, Istanbul, Turkey.
Cogn Affect Behav Neurosci. 2018 Oct;18(5):857-868. doi: 10.3758/s13415-018-0609-1.
Alterations in reward processing are frequently reported in attention deficit hyperactivity disorder (ADHD). One important factor affecting reward processing is the quality of reward as social and monetary rewards are processed by different neural networks. However, the effect of reward type on reward processing in ADHD has not been extensively studied. Hence, in the current study, an exploratory research was conducted to investigate the effect of reward type (i.e., social or monetary) on different phases of reward processing. We recorded event-related potentials (ERPs) during a spatial attention paradigm in which cues heralded availability and type of the upcoming reward and feedbacks informed about the reward earned. Thirty-nine (19 males) healthy individuals (age range: 19-27 years) participated in the study. ADHD symptoms were assessed by using ADHD self-report scale (ASRS). Our results revealed a consistent negative correlation between the hyperactivity subscale of ASRS and almost all social-feedback related ERPs (P2, P3, and FRN). ERP amplitudes after social feedbacks were less positive for P2 and P3 and more negative for FRN for individuals with greater hyperactivity levels. Our findings suggest that hyporesponsiveness to social feedbacks may be associated with hyperactivity. However, the results have to be confirmed with clinical populations.
奖励加工的改变在注意力缺陷多动障碍（ADHD）中经常被报道。影响奖励加工的一个重要因素是奖励的质量，因为社会奖励和金钱奖励是由不同的神经网络处理的。然而，奖励类型对 ADHD 中奖励加工的影响尚未得到广泛研究。因此，在当前的研究中，我们进行了一项探索性研究，以调查奖励类型（即社会奖励或金钱奖励）对奖励加工不同阶段的影响。我们在空间注意范式中记录了事件相关电位（ERPs），线索预示着即将到来的奖励的可用性和类型，反馈则告知了获得的奖励。39 名（男性 19 名，年龄范围：19-27 岁）健康个体参与了这项研究。使用 ADHD 自我报告量表（ASRS）评估 ADHD 症状。我们的结果表明，ASRS 多动量表与几乎所有与社会反馈相关的 ERPs（P2、P3 和 FRN）之间存在一致的负相关。对于多动水平较高的个体，社会反馈后的 ERP 振幅在 P2 和 P3 处的正性较小，在 FRN 处的负性较大。我们的发现表明，对社会反馈的低反应性可能与多动有关。然而，这些结果需要在临床人群中得到证实。
