Gamboa Olga Lucia, Chuan-Peng Hu, Salas Christian E, Yuen Kenneth S L
School of Psychology, University of Sydney, Sydney 2006, Australia.
EQness, Sydney 2034, Australia.
Biomedicines. 2022 Jun 29;10(7):1555. doi: 10.3390/biomedicines10071555.
Intentional forgetting (IF) is an important adaptive mechanism necessary for correct memory functioning, optimal psychological wellbeing, and appropriate daily performance. Due to its complexity, the neuropsychological processes that give birth to successful intentional forgetting are not yet clearly known. In this study, we used two different meta-analytic algorithms, Activation Likelihood Estimation (ALE) & Latent Dirichlet Allocation (LDA) to quantitatively assess the neural correlates of IF and to evaluate the degree of compatibility between the proposed neurobiological models and the existing brain imaging data. We found that IF involves the interaction of two networks, the main "core regions" consisting of a primarily right-lateralized frontal-parietal circuit that is activated irrespective of the paradigm used and sample characteristics and a second less constrained "supportive network" that involves frontal-hippocampal interactions when IF takes place. Additionally, our results support the validity of the inhibitory or thought suppression hypothesis. The presence of a neural signature of IF that is stable regardless of experimental paradigms is a promising finding that may open new venues for the development of effective clinical interventions.
有意遗忘(IF)是正确记忆功能、最佳心理健康和适当日常表现所必需的重要适应性机制。由于其复杂性,产生成功有意遗忘的神经心理过程尚不清楚。在本研究中,我们使用了两种不同的元分析算法,激活可能性估计(ALE)和潜在狄利克雷分配(LDA),来定量评估有意遗忘的神经相关性,并评估所提出的神经生物学模型与现有脑成像数据之间的兼容程度。我们发现,有意遗忘涉及两个网络的相互作用,主要的“核心区域”主要由右侧化的额顶叶回路组成,无论使用何种范式和样本特征,该回路都会被激活;第二个限制较少的“支持网络”,在有意遗忘发生时涉及额叶-海马体相互作用。此外,我们的结果支持抑制或思维抑制假说的有效性。无论实验范式如何,有意遗忘的神经特征都稳定存在,这一发现很有前景,可能为开发有效的临床干预措施开辟新途径。