Brain activation in highly superior autobiographical memory: the role of the praecuneus in the autobiographical memory retrieval network
De Bartolo, Adriana
De Marco, Matteo
AffiliationUniversity La Sapienza
University of Hull
University of Bedfordshire
University of Westminster
Universita' di Modena e Reggio Emilia
University of Sheffield
University of Strathclyde
Subjectsautobiographical memory network
highly superior autobiographical memory (HSAM)
MetadataShow full item record
AbstractThis is the first study to examine functional brain activation in a single case of Highly Superior Autobiographical Memory (HSAM) who shows no sign of obsessive compulsive disorder (OCD). While previous work has documented the existence of HSAM, information about brain areas involved in this exceptional form of memory for personal events relies on structural and resting state connectivity data, with mixed results so far. In this first taskbased functional magnetic resonance Imaging (fMRI) study of a normal individual with HSAM, dates were presented as cues and two phases were assessed during memory retrieval, initial access and later elaboration. Results showed that initial access was very fast, did not activate the hippocampus, and involved activation of predominantly posterior visual areas, including the praecuneus. These areas typically become active during later stages of elaboration of personal memories rather than during initial access. Elaboration involved a balanced bilateral activation of most of the autobiographical network areas, rather than the more typical shifts observed in people without HSAM. Overall, the pattern of brain activations, which rests on repeated observations in a single individual, highlights a strong involvement of the praecuneus and an idiosyncratic initial access to personal memory representations. Implications for the nature of personal memories in HSAM are discussed.
CitationMazzoni G, Clark A, De Bartolo A, Guerrini C, Nahouli Z, Duzzi D, De Marco M, McGeown W, Venneri A (2019) 'Brain activation in highly superior autobiographical memory: the role of the praecuneus in the autobiographical memory retrieval network', Cortex, 120 (), pp.588-602.
The following license files are associated with this item:
- Creative Commons
Except where otherwise noted, this item's license is described as Green - can archive pre-print and post-print or publisher's version/PDF
- Dynamic changes in large-scale functional network organization during autobiographical memory retrieval.
- Authors: Inman CS, James GA, Vytal K, Hamann S
- Issue date: 2018 Feb
- Behavioral and neuroanatomical investigation of Highly Superior Autobiographical Memory (HSAM).
- Authors: LePort AK, Mattfeld AT, Dickinson-Anson H, Fallon JH, Stark CE, Kruggel F, Cahill L, McGaugh JL
- Issue date: 2012 Jul
- Shifting visual perspective during retrieval shapes autobiographical memories.
- Authors: St Jacques PL, Szpunar KK, Schacter DL
- Issue date: 2017 Mar 1
- A cognitive assessment of highly superior autobiographical memory.
- Authors: LePort AK, Stark SM, McGaugh JL, Stark CE
- Issue date: 2017 Feb
- The precuneus and hippocampus contribute to individual differences in the unfolding of spatial representations during episodic autobiographical memory.
- Authors: Hebscher M, Levine B, Gilboa A
- Issue date: 2018 Feb
Showing items related by title, author, creator and subject.
A forensic investigation of robot operating systemAbeykoon, Iroshan; Feng, Xiaohua; Qiu, Renxi; University of Bedfordshire (Institute of Electrical and Electronics Engineers Inc., 2018-04-02)The robot operating system for robot which is still relatively new, is rapidly gaining robot manufacture industry market share with dozens of robots and drons either released or set to be released. In this paper we present the first methodology and toolset for acquisition and deep analysis of volatile physical memory from robot operating system devices. The article discusses some of the challenges in performing ros memory acquisition, discusses. For memory forensics we used Lime, volatility memory framework and DD command. The acquisition tool supports dump memory to either exterl drive or via the network.
“2 October is not forgotten”: Tlatelolco 1968 massacre and social memory frameworksCarpenter, Victoria (Peter Lang, 2019-05-17)The massacre of a student demonstration in La Plaza de las Tres Culturas, in the Tlatelolco district of Mexico City, on 2 October 1968, has been the subject of many debates, studies and literary works, whose aim is to keep the event alive in the collective memory and to tell ‘the truth’ about what happened that night. But is this aim achieved by any Tlatelolco discourse? Probably not. Nor, as I argue, is it necessary. What, then, is the function of the Tlatelolco discourses? Is it a matter of the state and popular discourses being at loggerheads in their respective claims to accuracy and ‘truth’? Or is it something else, led not by the search for truth, but by the need for emotional reconciliation? This essay is an in-depth case study of the narratives of the massacre from the perspective of the theory of posthegemony and Maurice Halbwachs’ studies of social memory frameworks. By focusing in such detail on the way the massacre is represented in the contemporary media, the essay determines how memory builds on narratives that emerge in the response to political violence in the modern media society. The most successful narratives are built on the emotions released immediately when the affect wave ‘crests’, so that those emotions are the strongest and the most relevant to the moment of affect and change of habit.
Web browser artefacts in private and portable modes: a forensic investigationFlowers, Cassandra; Mansour, Ali; al-Khateeb, Haider; Babraham Research Campus; University of Bedfordshire (Inderscience, 2016-04)Web browsers are essential tools for accessing the internet. Extra complexities are added to forensic investigations when recovering browsing artefacts as portable and private browsing are now common and available in popular web browsers. Browsers claim that whilst operating in private mode, no data is stored on the system. This paper investigates whether the claims of web browsers discretion are true by analysing the remnants of browsing left by the latest versions of Internet Explorer, Chrome, Firefox, and Opera when used in a private browsing session, as a portable browser, and when the former is running in private mode. Some of our key findings show how forensic analysis of the file system recovers evidence from IE while running in private mode whereas other browsers seem to maintain better user privacy. We analyse volatile memory and demonstrate how physical memory by means of dump files, hibernate and page files are the key areas where evidence from all browsers will still be recoverable despite their mode or location they run from.