Human retrograde amnesia and memory consolidation.

IF 3.2 3区 心理学 Q1 PSYCHOLOGY, EXPERIMENTAL
Panayiotis P Ketonis, Thomas Q McClelland, Dani Parra, Gabriel A Radvansky
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Abstract

This paper reports a reassessment of published literature on the question of whether retrograde amnesia data from patients with severe trauma supports the idea that there is ongoing consolidation of long-lasting memories. That is, memory consolidation continues for decades with older memories being increasingly consolidated, and, thus, more protected from forgetting. Our analysis was limited to patients with specific traumas rather than neurodegenerative conditions that can be complicated by the additional presence of significant anterograde amnesia. These constraints were used because trauma patients have a definitive start to their amnesia allowing comparison of their memories before this event, unlike when there is an undefined amnesia onset. Our results revealed that the standard account of retrograde amnesia only fits part of the data, with more than half not conforming to this account. Specifically, damage to different brain areas was associated with different patterns of retrograde amnesia. Those cases where the standard retrograde amnesia account was held tended to involve damage to the hippocampus and temporal lobes, as expected. Future directions to better understand the influence of retrograde amnesia and memory consolidation are suggested.

Abstract Image

人类逆行性遗忘症与记忆巩固。
本文报告了对已发表文献的重新评估,这些文献涉及严重创伤患者的逆行性遗忘数据是否支持长期记忆持续巩固的观点。也就是说,记忆的巩固会持续数十年,较早的记忆会越来越巩固,因此更能避免遗忘。我们的分析仅限于有特定创伤的患者,而不是神经退行性疾病患者,因为神经退行性疾病患者可能会因严重的逆行性遗忘而变得复杂。之所以采用这些限制条件,是因为创伤患者的遗忘症有一个明确的起始时间,可以对其在这一事件之前的记忆进行比较,这与遗忘症起始时间不明确的情况不同。我们的研究结果表明,逆行性遗忘症的标准说法只符合部分数据,有一半以上的数据不符合这一说法。具体来说,不同脑区的损伤与逆行性失忆的不同模式有关。符合标准逆行性遗忘的病例往往涉及海马和颞叶的损伤,这也是意料之中的。本文提出了未来的研究方向,以更好地理解逆行性遗忘和记忆巩固的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
6.70
自引率
2.90%
发文量
165
期刊介绍: The journal provides coverage spanning a broad spectrum of topics in all areas of experimental psychology. The journal is primarily dedicated to the publication of theory and review articles and brief reports of outstanding experimental work. Areas of coverage include cognitive psychology broadly construed, including but not limited to action, perception, & attention, language, learning & memory, reasoning & decision making, and social cognition. We welcome submissions that approach these issues from a variety of perspectives such as behavioral measurements, comparative psychology, development, evolutionary psychology, genetics, neuroscience, and quantitative/computational modeling. We particularly encourage integrative research that crosses traditional content and methodological boundaries.
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