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Peng M, Lovos A, Bottrill K, Hughes K, Sampsel M, Lee NR, Abbeduto L, Thurman AJ, Edgin J. Extended trajectory of spatial memory errors in typical and atypical development: The role of binding and precision. Hippocampus 2023; 33:1171-1188. [PMID: 37706613 PMCID: PMC10638674 DOI: 10.1002/hipo.23576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/06/2023] [Accepted: 08/23/2023] [Indexed: 09/15/2023]
Abstract
Spatial reconstruction, a method for evaluating how individuals remember the placement of objects, has traditionally been evaluated through the aggregate estimation of placement errors. However, this approach may obscure the nature of task errors. Specifically, recent data has suggested the importance of examining the precision of responses, as well as absolute performance on item-context bindings. In contrast to traditional analysis approaches based on the distance between the target and the reconstructed item, in this study we further explored three types of errors (swap error, global error, and local distance) that may all contribute to the distance, with particular emphasis on swap errors and local distance due to their associations with item-context bindings and memory precision, respectively. We examined these errors in children aged 3-18 years, making comparisons between children with typical development (TD) and children with Down syndrome (DS), a population with known memory challenges. As expected, older children outperformed younger children in terms of overall memory accuracy. Of importance is that we measured uneven maturational trajectories of memory abilities across the various error types. Specifically, both remembered locations (irrespective of object identity) and swap errors (object-location binding errors) align with the overall memory accuracy. Memory precision, as measured by local distance in simpler set size 2 trials, mirrored overall memory accuracy. However, for more complex set size 3 trials, local distance remained stable before age 8 and showed age-related change thereafter. The group with DS showed reduced precision compared to a TD matched group, and measures of precision, and to a lesser extent binding errors, correlated with standard neuropsychological outcomes. Overall, our study contributed to a fine-grained understanding of developing spatial memory ability in a large sample of typical developing children and a memory impaired population. These findings contribute to a growing body of research examining precision as a key factor in memory performance.
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Affiliation(s)
- Maomiao Peng
- Department of Psychology, The University of Arizona, Tucson, USA
| | - Annalysa Lovos
- Department of Psychology, The University of Arizona, Tucson, USA
| | - Kenneth Bottrill
- Department of Psychology, The University of Arizona, Tucson, USA
| | - Katharine Hughes
- Department of Psychology, The University of Arizona, Tucson, USA
| | - Miranda Sampsel
- Department of Psychology, The University of Arizona, Tucson, USA
| | - Nancy Raitano Lee
- Department of Psychological and Brain Sciences, Drexel University, Philadelphia, USA
| | - Leonard Abbeduto
- MIND Institute, University of California Davis Health, Sacramento, USA
- Department of Psychiatry and Behavioral Sciences, University of California Davis Health, Sacramento, USA
| | - Angela John Thurman
- MIND Institute, University of California Davis Health, Sacramento, USA
- Department of Psychiatry and Behavioral Sciences, University of California Davis Health, Sacramento, USA
| | - Jamie Edgin
- Department of Psychology, The University of Arizona, Tucson, USA
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Bouyeure A, Patil S, Mauconduit F, Poiret C, Isai D, Noulhiane M. Hippocampal subfield volumes and memory discrimination in the developing brain. Hippocampus 2021; 31:1202-1214. [PMID: 34448509 DOI: 10.1002/hipo.23385] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/30/2021] [Accepted: 07/24/2021] [Indexed: 12/12/2022]
Abstract
The ability to keep distinct memories of similar events is underpinned by a type of neural computation called pattern separation (PS). Children typically report coarse-grained memories narratives lacking specificity and detail. This lack of memory specificity is illustrative of an immature or impaired PS. Despite its importance for the ontogeny of memory, data regarding the maturation of PS during childhood is still scarce. PS is known to rely on the hippocampus, particularly on hippocampal subfields DG and CA3. In this study, we used a memory discrimination task, a behavioral proxy for PS, and manually segmented hippocampal subfields volumes in the hippocampal body in a cohort of 26 children aged from 5 to 12 years. We examined the association between subfields volumes and memory discrimination performance. The main results were: (1) we showed age-related differences of memory discrimination suggesting a continuous increase of memory performance during early to late childhood. (2) We evidenced distinct associations between age and the volumes of hippocampal subfield, suggesting distinct developmental trajectories. (3) We showed a relationship between memory discrimination performance and the volumes of CA3 and subiculum. Our results further confirm the role of CA3 in memory discrimination, and suggest to scrutinize more closely the role of the subiculum. Overall, we showed that hippocampal subfields contribute distinctively to PS during development.
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Affiliation(s)
- Antoine Bouyeure
- UNIACT, NeuroSpin, CEA, Université Paris-Saclay, Gif-sur-Yvette, France.,UMR1141, Inserm, Université de Paris, Paris, France
| | - Sandesh Patil
- UNIACT, NeuroSpin, CEA, Université Paris-Saclay, Gif-sur-Yvette, France.,UMR1141, Inserm, Université de Paris, Paris, France
| | - Franck Mauconduit
- BAOBAB, NeuroSpin, CEA, CNRS, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Clément Poiret
- UNIACT, NeuroSpin, CEA, Université Paris-Saclay, Gif-sur-Yvette, France.,UMR1141, Inserm, Université de Paris, Paris, France
| | - Damien Isai
- UNIACT, NeuroSpin, CEA, Université Paris-Saclay, Gif-sur-Yvette, France.,UMR1141, Inserm, Université de Paris, Paris, France
| | - Marion Noulhiane
- UNIACT, NeuroSpin, CEA, Université Paris-Saclay, Gif-sur-Yvette, France.,UMR1141, Inserm, Université de Paris, Paris, France
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Wais PE, Arioli M, Anguera-Singla R, Gazzaley A. Virtual reality video game improves high-fidelity memory in older adults. Sci Rep 2021; 11:2552. [PMID: 33510315 PMCID: PMC7844043 DOI: 10.1038/s41598-021-82109-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 01/14/2021] [Indexed: 12/26/2022] Open
Abstract
Therapeutic interventions have not yet been shown to demonstrate restorative effects for declining long-term memory (LTM) that affects many healthy older adults. We developed a virtual reality (VR) spatial wayfinding game (Labyrinth-VR) as a cognitive intervention with the hypothesis that it could improve detailed, high-fidelity LTM capability. Spatial navigation tasks have been used as a means to achieve environmental enrichment via exposure to and learning about novel and complex information. Engagement has been shown to enhance learning and has been linked to the vitality of the LTM system in the brain. In the current study, 48 older adults (mean age 68.7 ± 6.4 years) with average cognitive abilities for their age were randomly assigned to 12 h of computer game play over four weeks in either the Labyrinth-VR or placebo control game arms. Promptly before and after each participant's treatment regimen, high-fidelity LTM outcome measures were tested to assess mnemonic discrimination and other memory measures. The results showed a post-treatment gain in high-fidelity LTM capability for the Labyrinth-VR arm, relative to placebo, which reached the levels attained by younger adults in another experiment. This novel finding demonstrates generalization of benefits from the VR wayfinding game to important, and untrained, LTM capabilities. These cognitive results are discussed in the light of relevant research for hippocampal-dependent memory functions.
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Affiliation(s)
- Peter E Wais
- Department of Neurology, Neuroscape and Weill Institute for Neurosciences, University of California, San Francisco, UCSF-MC0444, 675 Nelson Rising Lane, San Francisco, CA, 94158, USA.
| | - Melissa Arioli
- Department of Neurology, Neuroscape and Weill Institute for Neurosciences, University of California, San Francisco, UCSF-MC0444, 675 Nelson Rising Lane, San Francisco, CA, 94158, USA
| | - Roger Anguera-Singla
- Department of Neurology, Neuroscape and Weill Institute for Neurosciences, University of California, San Francisco, UCSF-MC0444, 675 Nelson Rising Lane, San Francisco, CA, 94158, USA
| | - Adam Gazzaley
- Department of Neurology, Neuroscape and Weill Institute for Neurosciences, University of California, San Francisco, UCSF-MC0444, 675 Nelson Rising Lane, San Francisco, CA, 94158, USA
- Departments of Physiology and Psychiatry, University of California, San Francisco, San Francisco, USA
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