Neurocognitive mechanisms of real‐world autobiographical memory retrieval: insights from studies using wearable camera technology

Chow, Tiffany E.; Rissman, Jesse

doi:10.1111/nyas.13353

Cited by 62 publications

(65 citation statements)

References 91 publications

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“…For instance, participants may perform a series of planned activities while taking a walk following a specified route, and then verbally describe the details of the walk [40]. Portable devices such as smartphones or wearable cameras are often used to record these real-world experiences online, which in turn can be used as retrieval cues [41]. Unlike traditional autobiographical memory studies, these types of studies of real-life memory allow experimenters to at least partially access and control to-be-remembered events, making it easier to assess the objective accuracy of the memories and compare items across individuals.…”

Section: Box 3: Real-life Experience As Narrativementioning

confidence: 99%

What can narratives tell us about the neural bases of human memory?

Lee

Bellana

Chen

2020

Current Opinion in Behavioral Sciences

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Narratives are increasingly used to study naturalistic human memory and its brain mechanisms. Narratives-audiovisual movies, spoken stories, and written stories-consist of multiple interrelated and temporally unfolding events which are rich in semantic and emotional content. These characteristics drive intersubject neural synchrony in the default mode network, where abstract situation models are represented and reinstated. Medial temporal lobe structures interact with the cortical subregions of the default mode network to support the encoding and recall of narrative events. Narrative memories are frequently communicated across individuals, resulting in the transmission of experiences and neural activity patterns between people. Recent advances in neuroimaging and naturalistic stimulus analysis provide valuable insights into narrative memory and the human memory system in general. Highlights * Both encoding material and retrieval tasks can vary in terms of their narrative-ness. * Narratives drive inter-individual neural synchrony in the default mode network. * Continuous narratives are segmented and remembered as discrete events. * Narrative event representations are reactivated in the default mode network during recall. * Communication induces converging narrative memory and neural activity across people.

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Section: Box 3: Real-life Experience As Narrativementioning

confidence: 99%

What can narratives tell us about the neural bases of human memory?

Lee

Bellana

Chen

2020

Current Opinion in Behavioral Sciences

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“…Behavioral analysis was carried out using a linear mixed model analysis in R (LME4 package v1. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Four factors "Training", "Scan", "Group" and "Gender" were modelled as fixed effects and "Subject" as a random effect to account for individual intercepts.…”

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confidence: 99%

Neural correlates of retrieval-based enhancement of autobiographical memory in older adults

Zhang

Grandjean

et al. 2020

Sci Rep

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Lifelog photo review is considered to enhance the recall of personal events. While a sizable body of research has explored the neural basis of autobiographical memory (AM), there is limited neural evidence on the retrieval-based enhancement effect on event memory among older adults in the realworld environment. This study examined the neural processes of AM as was modulated by retrieval practice through lifelog photo review in older adults. In the experiment, blood-oxygen-level dependent response during subjects' recall of recent events was recorded, where events were cued by photos that may or may not have been exposed to a priori retrieval practice (training). Subjects remembered more episodic details under the trained relative to non-trained condition. Importantly, the neural correlates of AM was exhibited by (1) dissociable cortical areas related to recollection and familiarity, and (2) a positive correlation between the amount of recollected episodic details and cortical activation within several lateral temporal and parietal regions. Further analysis of the brain activation pattern at a few regions of interest within the core remember network showed a training_condition × event_detail interaction effect, suggesting that the boosting effect of retrieval practice depended on the level of recollected event details. Autobiographical memory (AM)-the memory of events or facts retrieved from an individual's own life-can be context-specific with rich episodic details, or acontextual with only the gist of self-relevant events or personal knowledge 1-3. The former is often associated with the retrieval of specific events that can be measured by the amount of recollected event details 4,5 or the subjective vividness of memories 4-7 ; and the later reflects the experience of recognition without recalling details (i.e., familiarity) 8,9. Another related concept is the temporal specificity that indicates whether an event memory is specific to one point in time or repeated over time 4,10. The ability to recollect event details is indicative of psychological and cognitive functioning, and are influenced by aging 10-12. For example, older adults tend to remember fewer episodic details than young adults 5,13 , which in turn contribute to other types of cognitive problems, such as, susceptibility to AM conjunction errors 14 and difficulties in imagination 15. Therefore, it is beneficial to maintain higher level of autobiographical event memory. Many researchers investigated the neurocognitive mechanisms of AM, such as, the brain network that is selectively activated by personal episodic memory versus other non-personal memory (sometimes called the "AM retrieval network") 16-20. The characteristics of AM has also been studied according to the dissociable neural structures and processes related to the recall of personal specific events versus general autobiographical events or personal semantic knowledge 2,21,22. Some studies investigated further into brain regions that tracked the amount and fidelity of recollected information...

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“…Retrieving naturalistic stimuli, such as autobiographical event episodes, requires exploration through a wide search space, the integration of information across multiple time scales, and the activation of self-referential processes and vividness that typically accompany the successful retrieval of ones' past (Cabeza et al, 2004;Chen & Caplan, 2017;Chow & Rissman, 2017;Gilboa et al, 2004;McDermott et al, 2009;Roediger & McDermott, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…However, the vast majority of behavioral and neuroimaging studies of episodic retrieval have used laboratory encoded stimuli, such as words or pictures, as memory probes. While such stimuli provide researchers with tight experimental control over the perceptual qualities, exposure duration, and retention interval of the events being tested, laboratory stimuli lack the richness of most real-world experiences (Chow & Rissman, 2017;Chow et al, 2018;Diamond & Levine, 2020;Nielson et al, 2015;St. Jacques et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Neurophysiological signatures in the retrieval of individual autobiographical memories of real-life episodic events

Nicolás¹,

Wu²,

Dimiccolli

et al. 2020

Preprint

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Autobiographical memory (AM) refers to recollected events that belong to an individual's past. In a classical episodic retrieval experiment in a laboratory, the events to be remembered are words or pictures that have hardly any personal relevance. While such stimuli provide necessary experimental and controlled conditions helping to advance in the understanding of memory, they do not capture the whole complexity of real-world stimuli.Recently, the incorporation of wearable cameras has allowed us to study the cognitive and neural bases of AM retrieval without active participant involvement, and they have been demonstrated to elicit a strong sense of first-person episodic recollection enhancing ecological validity. Here, we provide a new approach to understanding the retrieval of personal events, implementing a convolution network-based algorithm for the selection of the stimuli while monitoring participants' memory retrieval with scalp EEG recordings over three periods of time after encoding (1 week, 2 weeks, and 6 to 12 months). We also examined an individual with a condition termed Aphantasia that provided more insights into the sensitivity of our protocol in the investigation of individual AM using real-life sequences.

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Neurocognitive mechanisms of real‐world autobiographical memory retrieval: insights from studies using wearable camera technology

Cited by 62 publications

References 91 publications

What can narratives tell us about the neural bases of human memory?

What can narratives tell us about the neural bases of human memory?

Neural correlates of retrieval-based enhancement of autobiographical memory in older adults

Neurophysiological signatures in the retrieval of individual autobiographical memories of real-life episodic events

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