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Human brain activity and functional connectivity as memories age from one hour to one month. 随着记忆从一小时到一个月的老化，人类的大脑活动和功能连接。
IF 2 4区 医学
Cognitive Neuroscience Pub Date : 2022-07-01 DOI: 10.1080/17588928.2021.2021164
Catherine W Tallman, Robert E Clark, Christine N Smith
{"title":"Human brain activity and functional connectivity as memories age from one hour to one month.","authors":"Catherine W Tallman,&nbsp;Robert E Clark,&nbsp;Christine N Smith","doi":"10.1080/17588928.2021.2021164","DOIUrl":"https://doi.org/10.1080/17588928.2021.2021164","url":null,"abstract":"<p><p>Theories of memory consolidation suggest the role of brain regions and connectivity between brain regions change as memories age. Human lesion studies indicate memories become hippocampus-independent over years, whereas animal studies suggest this process occurs across relatively short intervals, from days to weeks. Human neuroimaging studies suggest that changes in hippocampal and cortical activity and connectivity can be detected over these short intervals, but many of these studies examined only two time periods. We examined memory and fMRI activity for photos of indoor and outdoor scenes across four time periods to examine these neural changes more carefully. Participants (N = 21) studied scenes 1 hour, 1 day, 1 week, or 1 month before scanning. During scanning, participants viewed scenes, made old/new recognition memory judgments, and gave confidence ratings. Memory accuracy, confidence ratings, and response times changed with memory age. Brain activity in a widespread cortical network either increased or decreased with memory age, whereas hippocampal activity was not related to memory age. These findings were almost identical when effects of behavioral changes across time periods were minimized. Functional connectivity of the ventromedial prefrontal cortex with the posterior parietal cortex increased with memory age. By contrast, functional connectivity of the hippocampus with the parahippocampal cortex and fusiform gyrus decreased with memory age. In sum, we detected changes in cortical activity and changes in hippocampal and cortical connectivity with memory age across short intervals. These findings provide support for the predictions of systems consolidation and suggest that these changes begin soon after memories are formed.</p>","PeriodicalId":10413,"journal":{"name":"Cognitive Neuroscience","volume":"13 3-4","pages":"115-133"},"PeriodicalIF":2.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9308837/pdf/nihms-1769153.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9732907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
Changes in brain activity and connectivity as memories age. 随着记忆老化，大脑活动和连通性的变化。
IF 2 4区 医学
Cognitive Neuroscience Pub Date : 2022-07-01 DOI: 10.1080/17588928.2022.2076076
Francesco Gobbo, Rufus Mitchell-Heggs, Dorothy Tse
{"title":"Changes in brain activity and connectivity as memories age.","authors":"Francesco Gobbo,&nbsp;Rufus Mitchell-Heggs,&nbsp;Dorothy Tse","doi":"10.1080/17588928.2022.2076076","DOIUrl":"https://doi.org/10.1080/17588928.2022.2076076","url":null,"abstract":"<p><p>The role of the hippocampus during memory consolidation is not fully understood, with human and animal experiments producing conflicting conclusions. In particular, human lesion studies tend to indicate that the hippocampus gradually becomes independent from memory over years, whilst animal studies suggest that this can happen over days. Tallman et al. (this issue) used fMRI to investigate activity and functional connectivity in the brain at four different time points following memory encoding. Their findings include a decrease in functional connectivity between the hippocampus and parahippocampal cortex with memory age, which supports the system consolidation theory, but also argues against the reduced involvement of the hippocampus over time. This study sheds new light on the neurobiology of memory.</p>","PeriodicalId":10413,"journal":{"name":"Cognitive Neuroscience","volume":"13 3-4","pages":"141-143"},"PeriodicalIF":2.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10374257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The hippocampus and long-term memory. 海马体和长期记忆。
IF 2 4区 医学
Cognitive Neuroscience Pub Date : 2022-07-01 DOI: 10.1080/17588928.2022.2128736
Scott D Slotnick
{"title":"The hippocampus and long-term memory.","authors":"Scott D Slotnick","doi":"10.1080/17588928.2022.2128736","DOIUrl":"https://doi.org/10.1080/17588928.2022.2128736","url":null,"abstract":"<p><p>This special issue of <i>Cognitive Neuroscience</i> focuses on the roles of the hippocampus during long-term memory. A discussion paper by Tallman, Clark, and Smith (this issue) found that functional connectivity of the hippocampus with the parahippocampal cortex and fusiform gyrus decreased with memory age, providing support for systems consolidation. Commentaries were received by Berdugo-Vega and Gräff (this issue), Feld and Gerchen (this issue), Gellersen and Simons (this issue), Gobbo, Mitchell-Heggs, and Tse (this issue), Gilmore, Audrain, and Martin (this issue), Kirwan (this issue), Manns (this issue), Runyan and Brooks (this issue), Santangelo (this issue), and Yang (this issue). The author response considered the content and context of memorial information along with neuroanatomy and functional specialization and conducted new analyses to clarify their findings. An empirical fMRI paper by Thakral, Yu, and Rugg (this issue) reported that the hippocampus was sensitive to the amount of contextual information retrieved, regardless of remember-know status. Another empirical study by Bjornn, Van, and Kirwan (this issue) found that hippocampal activation changes were correlated with the number of fixations at study for correct but not incorrect mnemonic discrimination judgments. A second discussion paper (Slotnick, this issue) concluded that no fMRI studies have provided evidence that the hippocampus is associated with working memory. Commentaries were received by Courtney (this issue), Kessels and Bergmann (this issue), Peters and Reithler (this issue), Rose and Chao (this issue), Stern and Hasselmo (this issue), and Wood, Clark, and Nee (this issue). The articles in this special issue illustrate that the roles of the hippocampus in long-term memory (and other types of memory) are under active investigation and provide many directions for research in the immediate future.</p>","PeriodicalId":10413,"journal":{"name":"Cognitive Neuroscience","volume":"13 3-4","pages":"113-114"},"PeriodicalIF":2.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10415857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Hippocampal activity supporting working memory is contingent upon specific task demands. 支持工作记忆的海马体活动取决于特定的任务要求。
IF 2 4区 医学
Cognitive Neuroscience Pub Date : 2022-07-01 DOI: 10.1080/17588928.2022.2131748
Jessica L Wood, Danielle E Clark, Derek Evan Nee
{"title":"Hippocampal activity supporting working memory is contingent upon specific task demands.","authors":"Jessica L Wood,&nbsp;Danielle E Clark,&nbsp;Derek Evan Nee","doi":"10.1080/17588928.2022.2131748","DOIUrl":"https://doi.org/10.1080/17588928.2022.2131748","url":null,"abstract":"<p><p>Working memory (WM) is the ability to maintain and manipulate internal representations. WM recruits varying brain regions based on task demands. Although the hippocampus has historically been associated with long-term memory (LTM), several studies provide evidence for its involvement during WM tasks. Slotnick (this issue) posits that this involvement is due to LTM processes. This argument rests on the assumption that processes are not shared among WM and LTM, and that WM processes are necessarily sustained. We argue that there are processes utilized by both WM and LTM, and that such processes need not be sustained to support WM.</p>","PeriodicalId":10413,"journal":{"name":"Cognitive Neuroscience","volume":"13 3-4","pages":"220-222"},"PeriodicalIF":2.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9796901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
What does the hippocampus do during working-memory tasks? A cognitive-neuropsychological perspective. 海马体在工作记忆任务中做什么?认知神经心理学的观点。
IF 2 4区 医学
Cognitive Neuroscience Pub Date : 2022-07-01 DOI: 10.1080/17588928.2022.2131745
Roy P C Kessels, Heiko C Bergmann
{"title":"What does the hippocampus do during working-memory tasks? A cognitive-neuropsychological perspective.","authors":"Roy P C Kessels,&nbsp;Heiko C Bergmann","doi":"10.1080/17588928.2022.2131745","DOIUrl":"https://doi.org/10.1080/17588928.2022.2131745","url":null,"abstract":"<p><p>In this commentary, we highlight the role of the hippocampus as a binding device that may explain its recruitment during associative working-memory paradigms. Furthermore, we argue that both functional neuroimaging research, as presented in Slotnick (this issue), and carefully designed lesion studies in patients with selective bilateral hippocampal damage are crucial for advancing our understanding of the neural structures and processing involved in human memory in general and disentangling the role of the hippocampus proper and other medial temporal lobe structures in working-memory function and long-term encoding specifically.</p>","PeriodicalId":10413,"journal":{"name":"Cognitive Neuroscience","volume":"13 3-4","pages":"210-211"},"PeriodicalIF":2.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9796907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
In search of systems consolidation 寻求系统整合
IF 2 4区 医学
Cognitive Neuroscience Pub Date : 2022-06-04 DOI: 10.1080/17588928.2022.2080652
Gordon Benedikt Feld, M. Fungisai Gerchen
{"title":"In search of systems consolidation","authors":"Gordon Benedikt Feld, M. Fungisai Gerchen","doi":"10.1080/17588928.2022.2080652","DOIUrl":"https://doi.org/10.1080/17588928.2022.2080652","url":null,"abstract":"ABSTRACT Systems consolidation solves the stability-plasticity-dilemma and is a persuasive theory within the neuroscience of memory. The study by Tallman et al. (this issue) adds to the current literature showing that brain activity changes over time follow a power function in some neocortical areas but not in the hippocampus. In our comment, we suggest that a power function may, however, not be the only model that needs to be considered for such an analysis. We also highlight that reasoning by the absence of statistical significance should be replaced by appropriate statistics (e.g., using superiority or equivalence tests).","PeriodicalId":10413,"journal":{"name":"Cognitive Neuroscience","volume":"13 1","pages":"137 - 138"},"PeriodicalIF":2.0,"publicationDate":"2022-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46181736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beyond the hippocampus: boundary conditions for cortical connectivity and activity over time 海马体之外:随着时间的推移，皮质连通性和活动的边界条件
IF 2 4区 医学
Cognitive Neuroscience Pub Date : 2022-05-27 DOI: 10.1080/17588928.2022.2080651
Jiongjiong Yang
{"title":"Beyond the hippocampus: boundary conditions for cortical connectivity and activity over time","authors":"Jiongjiong Yang","doi":"10.1080/17588928.2022.2080651","DOIUrl":"https://doi.org/10.1080/17588928.2022.2080651","url":null,"abstract":"ABSTRACT By including four different time intervals and controlling for behavioral confounds, Tallman et al. (this issue) found that brain connectivity of cortical regions with the vmPFC or with the hippocampus changed over time, although hippocampal activity did not change significantly. This study shed light on how memory is consolidated as it ages. Further studies could clarify the extent to which other factors, such as memory content, influence brain connectivity with more than two time intervals. The roles of different cortical regions in memory consolidation should also be addressed.","PeriodicalId":10413,"journal":{"name":"Cognitive Neuroscience","volume":"13 1","pages":"156 - 157"},"PeriodicalIF":2.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47147785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inquiring the librarian about the location of memory 向图书管理员询问内存的位置
IF 2 4区 医学
Cognitive Neuroscience Pub Date : 2022-05-26 DOI: 10.1080/17588928.2022.2076075
G. Berdugo-Vega, Johannes Graeff
{"title":"Inquiring the librarian about the location of memory","authors":"G. Berdugo-Vega, Johannes Graeff","doi":"10.1080/17588928.2022.2076075","DOIUrl":"https://doi.org/10.1080/17588928.2022.2076075","url":null,"abstract":"ABSTRACT Where memories are stored in the brain is an age-old question in psychology and neuroscience alike. In particular, whether hippocampus-encoded memories are transferred to the cortex or remain hippocampus-dependent over time has not been definitely answered. New evidence from fMRI studies in humans suggest that while hippocampo-cortical connections lose weight during declarative memory consolidation, the hippocampus – alongside corticocortical connections – stays equally engaged between recent and remote memory recall. These findings lend experimental support for the indexing theory of memory consolidation, which postulates the hippocampus to act as a librarian to retrieve the cortical books of memory.","PeriodicalId":10413,"journal":{"name":"Cognitive Neuroscience","volume":"13 1","pages":"134 - 136"},"PeriodicalIF":2.0,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45100879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Evidence for the standard model, multiple trace theory, or the unified theory? 标准模型、多痕迹理论还是统一理论的证据？
IF 2 4区 医学
Cognitive Neuroscience Pub Date : 2022-05-23 DOI: 10.1080/17588928.2022.2076663
J. D. Runyan, Nathan W Brooks
{"title":"Evidence for the standard model, multiple trace theory, or the unified theory?","authors":"J. D. Runyan, Nathan W Brooks","doi":"10.1080/17588928.2022.2076663","DOIUrl":"https://doi.org/10.1080/17588928.2022.2076663","url":null,"abstract":"ABSTRACT There have been two dominating theories for memory consolidation: the standard model (SM) and multiple trace theory (MTT). Whereas lesion studies have largely indicated a waning role for the hippocampus in memory consolidation, and thus have supported SM, findings from neuroimaging studies have produced varying results. Tallman et al. (this issue) argue that this variability may result from confounding factors and that, once these factors are accounted for, their neuroimaging results support SM. They do not, however, consider a third option: the unified theory. Here, we suggest that their findings, along with neurobiochemical and engram cell studies, may better fit this third theory.","PeriodicalId":10413,"journal":{"name":"Cognitive Neuroscience","volume":"13 1","pages":"151 - 153"},"PeriodicalIF":2.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48278352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The devil may be in the details: The need for contextually rich stimuli in memory consolidation research 细节可能是问题的关键:记忆巩固研究中对情境丰富刺激的需求
IF 2 4区 医学
Cognitive Neuroscience Pub Date : 2022-05-19 DOI: 10.1080/17588928.2022.2076077
H. Gellersen, J. Simons
{"title":"The devil may be in the details: The need for contextually rich stimuli in memory consolidation research","authors":"H. Gellersen, J. Simons","doi":"10.1080/17588928.2022.2076077","DOIUrl":"https://doi.org/10.1080/17588928.2022.2076077","url":null,"abstract":"ABSTRACT Systems consolidation theory (SCT) proposes that the hippocampus is not required for retrieval of remote memories. In this issue, Tallman and colleagues observe reduced hippocampal-cortical connectivity in recognition memory as a function of memory age, which they interpret as supportive of SCT. We suggest that research seeking to inform this debate would benefit from using perceptually rich stimuli that promote the recollection of high-fidelity contextual details. Tests of recognition alone may not be capable of discerning whether reductions in hippocampal activity or connectivity reflect remote memory retrieval independent of hippocampus (consistent with SCT) or a time-dependent decline in episodic detail.","PeriodicalId":10413,"journal":{"name":"Cognitive Neuroscience","volume":"13 1","pages":"139 - 140"},"PeriodicalIF":2.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45834528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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