自然数码奇象记忆法记忆复杂数字的神经机制

本研究采用学习-再认范式和复杂数字记忆材料,考察自然数码奇象记忆法相对于机械记忆法在记忆提取上的优势及神经机制。行为结果表明,自然数码奇象记忆法比机械记忆法的再认准确率更高。事件相关电位分析结果显示,再认提取阶段奇象记忆条件下诱发的N400和N700波幅显著更低,这说明奇象记忆提取更容易。在自然数码奇象记忆条件下,正确再认旧数字诱发的前额区、左顶枕叶区及中顶枕叶区N700成分与使用自然数码奇象记忆有关。本研究表明,采用自然数码奇象记忆可以减少或跨越语义加工,从而提高个体对材料的记忆效率。     

Elucidating the mental processes underlying the direct retrieval of autobiographical memories

The literature on autobiographical memory retrieval has directed much attention to the concepts of direct retrieval (fast, automatic retrieval) and generative retrieval (slower, deliberative/strategic retrieval). Among the many findings reported on these phenomena, their relative prevalence has stood out as a central feature in many studies, with most studies reporting the frequency of direct retrieval as equal to or exceeding generative retrieval. In this study, we used the retrieve-aloud procedure (a method where participants verbalize their thoughts while retrieving) to delve more deeply into the nature of reports of ubiquitous direct retrieval. We hypothesized that much of the direct retrieval reported in literature is not bona fide direct retrieval (i.e., seemingly automatic retrieval), but is a combination of other retrieval processes, including generative-like retrieval processes. Our results supported this view, showing that less than one-half of all of the observed direct retrievals were bona fide direct retrieval, while the rest were a form of generative retrieval, or fell somewhere in between direct and generative retrieval. We argue that the results suggest that the prevalence of direct retrieval may be overestimated in the literature, and we further propose an alternative classification schema for direct retrievals.     

States of curiosity and interest enhance memory differently in adolescents and in children

Curiosity – broadly defined as the desire to acquire new information – enhances learning and memory in adults. In addition, interest in the information (i.e., when the information is processed) can also facilitate later memory. To date, it is not known how states of pre‐information curiosity and post‐information interest enhance memory in childhood and adolescence. We used a trivia paradigm in which children and adolescents (N = 60, 10–14 years) encoded trivia questions and answers associated with high or low curiosity. States of high pre‐answer curiosity enhanced later memory for trivia answers in both children and adolescents. However, higher positive post‐answer interest enhanced memory for trivia answers beyond the effects of curiosity more strongly in adolescents than in children. These results suggest that curiosity and interest have positive effects on learning and memory in childhood and adolescence, but might need to be harnessed in differential ways across child development to optimize learning.     

Collective memories,emotions, and spatial tactics in social movements: The case of the Umbrella Movement in Hong Kong

Recent studies have increasingly acknowledged the dynamic relationship between emotions and space in social movements. They, however, have seldom tied emotions and space to time when discussing activists’ emotions and their tactical choices. This paper studies the 2014 Umbrella Movement in Hong Kong and explores how collective memory and generational experiences—two intertwined notions of time—shaped how activists felt and how they designed and deployed a spatial tactic. The Umbrella Movement was characterized by miscellaneous emotions and intense disputes among activists regarding how to best use spatial occupation to fight for democratization before and during the struggle. Using a qualitative dataset that contains textual and interview data, I argue that while emotions and the political-cultural characteristics of contentious space were two factors in informing tactical choices, collective memory and generational experiences were key to understanding the rise of the movement and its characteristics. Experiencing different political events in their years of early adulthood, young and veteran activists felt differently in the context of 2013–2014, which led them to embrace disjunctive views on the pace, sequence, and bodily action for the same tactic of spatial occupation and dissimilar emotional management strategies. This created ongoing internal clashes before and during the movement.     

Timing the “magical number seven”: Presentation rate and regularity affect verbal working memory performance

The informative value of time and temporal structure often remains neglected in cognitive assessments. However, next to information about stimulus identity we can exploit temporal ordering principles, such as regularity, periodicity, or grouping to generate predictions about the timing of future events. Such predictions may improve cognitive performance by optimising adaptation to dynamic stimuli. Here, we investigated the influence of temporal structure on verbal working memory by assessing immediate recall performance for aurally presented digit sequences (forward digit span) as a function of standard (1000 ms stimulus-onset-asynchronies, SOAs), short (700 ms), long (1300 ms) and mixed (700–1300 ms) stimulus timing during the presentation phase. Participant's digit spans were lower for short and mixed SOA presentation relative to standard SOAs. This confirms an impact of temporal structure on the classic “magical number seven,” suggesting that working memory performance can in part be regulated through the systematic application of temporal ordering principles.     

Displacement trauma: complex states of personal,collective and intergenerational fragmentation and their intergenerational transmission

Originally presented at the Journal’s one day conference entitled ‘Displacement: Contemporary Traumatic Experience’ held in London in November 2019, this paper expands on the author’s theory of the implicit psychological organizing gestalt, an associated pattern of psychic functions which operate in an integrated way to simultaneously structure and organize our experience of self-cohesion and self-continuity. The gestalt, which implicitly links the formation of psychic skin, body image, cultural skin and both personal and cultural identity with place, functions as an emergent non-conscious permanent presence or background ‘constant’. It develops over time and emerges out of embodied emotional experiencing with the total environment – both human and non-human. The author argues that it is the rupture of this gestalt and the disorganizing consequences of its loss which underlies the experience of displacement trauma. If disruptions in the formation of the gestalt and/or its later rupture remain unrecognized and unrepresented then the absence creates a void which can be intergenerationally transmitted. Case material is presented which describes this and which highlights the ways in which the gestalt can contribute to our understanding of collective displacement anxiety, cultural trauma and cultural complexes.