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Compensation of trial-to-trial latency jitter reveals the parietal retrieval success effect to be both variable and thresholded in older adults

Research output: Contribution to journalArticlepeer-review

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Compensation of trial-to-trial latency jitter reveals the parietal retrieval success effect to be both variable and thresholded in older adults. / Murray, Jamie G.; Ouyang, Guang; Donaldson, David I.

In: Frontiers in Aging Neuroscience, Vol. 10, 179, 23.07.2019.

Research output: Contribution to journalArticlepeer-review

Harvard

Murray, JG, Ouyang, G & Donaldson, DI 2019, 'Compensation of trial-to-trial latency jitter reveals the parietal retrieval success effect to be both variable and thresholded in older adults', Frontiers in Aging Neuroscience, vol. 10, 179. https://doi.org/10.3389/fnagi.2019.00179

APA

Murray, J. G., Ouyang, G., & Donaldson, D. I. (2019). Compensation of trial-to-trial latency jitter reveals the parietal retrieval success effect to be both variable and thresholded in older adults. Frontiers in Aging Neuroscience, 10, [179]. https://doi.org/10.3389/fnagi.2019.00179

Vancouver

Murray JG, Ouyang G, Donaldson DI. Compensation of trial-to-trial latency jitter reveals the parietal retrieval success effect to be both variable and thresholded in older adults. Frontiers in Aging Neuroscience. 2019 Jul 23;10. 179. https://doi.org/10.3389/fnagi.2019.00179

Author

Murray, Jamie G. ; Ouyang, Guang ; Donaldson, David I. / Compensation of trial-to-trial latency jitter reveals the parietal retrieval success effect to be both variable and thresholded in older adults. In: Frontiers in Aging Neuroscience. 2019 ; Vol. 10.

Bibtex - Download

@article{5c969d9fc4754d79ac84a538982e9ed9,
title = "Compensation of trial-to-trial latency jitter reveals the parietal retrieval success effect to be both variable and thresholded in older adults",
abstract = "Although the neural mechanism supporting episodic recollection has been well characterized in younger adults, exactly how recollection is supported in older adults remains unclear. The electrophysiological correlate of recollection-the parietal retrieval success effect-for example, has been shown to be sensitive to both the amount of information recollected and the accuracy of remembered information in younger adults. To date, there is mixed evidence that parietal effect also scales with the amount of information remembered in older adults whilst there is little evidence that the same mechanism is sensitive to the accuracy of recollected information. Here, we address one potential concern when investigating Event Related Potentials (ERPs) among older adults-namely, the greater potential for single-trial latency variability to smear and reduces the amplitudes of averaged ERPs. We apply a well-established algorithm for correcting single-trial latency variability, Residual Iteration Decomposition Analysis (RIDE), to investigate whether the parietal retrieval success effect among older adults is sensitive to retrieval accuracy. Our results reveal that similar to younger adults, older adult parietal retrieval success effects scale with the accuracy of recollected information-i.e., is greater in magnitude when recollected information is of high accuracy, reduced in magnitude when accuracy is low, and entirely absent when guessing. The results help clarify the functional significance of the neural mechanism supporting recollection in older adults whilst also highlighting the potential issues with interpreting average ERPs in older adult populations.",
keywords = "Cognitive aging, Episodic recollection, Parietal ERP effect, Residual iteration decomposition analysis, Retrieval accuracy",
author = "Murray, {Jamie G.} and Guang Ouyang and Donaldson, {David I.}",
note = "JM was supported by the SINAPSE Postdoctoral and Early Career Researcher Exchange (PECRE) grant: SFC project code H11004. GO is partly supported by Seed Fund for Basic Research from The University of Hong Kong (201804159003). DD is a member of the SINAPSE collaboration (www.sinapse.ac.uk), a pooling initiative funded by the Scottish Funding Council and the Chief Scientific Office of the Scottish Executive.",
year = "2019",
month = jul,
day = "23",
doi = "10.3389/fnagi.2019.00179",
language = "English",
volume = "10",
journal = "Frontiers in Aging Neuroscience",
issn = "1663-4365",
publisher = "Frontiers Media S. A.",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Compensation of trial-to-trial latency jitter reveals the parietal retrieval success effect to be both variable and thresholded in older adults

AU - Murray, Jamie G.

AU - Ouyang, Guang

AU - Donaldson, David I.

N1 - JM was supported by the SINAPSE Postdoctoral and Early Career Researcher Exchange (PECRE) grant: SFC project code H11004. GO is partly supported by Seed Fund for Basic Research from The University of Hong Kong (201804159003). DD is a member of the SINAPSE collaboration (www.sinapse.ac.uk), a pooling initiative funded by the Scottish Funding Council and the Chief Scientific Office of the Scottish Executive.

PY - 2019/7/23

Y1 - 2019/7/23

N2 - Although the neural mechanism supporting episodic recollection has been well characterized in younger adults, exactly how recollection is supported in older adults remains unclear. The electrophysiological correlate of recollection-the parietal retrieval success effect-for example, has been shown to be sensitive to both the amount of information recollected and the accuracy of remembered information in younger adults. To date, there is mixed evidence that parietal effect also scales with the amount of information remembered in older adults whilst there is little evidence that the same mechanism is sensitive to the accuracy of recollected information. Here, we address one potential concern when investigating Event Related Potentials (ERPs) among older adults-namely, the greater potential for single-trial latency variability to smear and reduces the amplitudes of averaged ERPs. We apply a well-established algorithm for correcting single-trial latency variability, Residual Iteration Decomposition Analysis (RIDE), to investigate whether the parietal retrieval success effect among older adults is sensitive to retrieval accuracy. Our results reveal that similar to younger adults, older adult parietal retrieval success effects scale with the accuracy of recollected information-i.e., is greater in magnitude when recollected information is of high accuracy, reduced in magnitude when accuracy is low, and entirely absent when guessing. The results help clarify the functional significance of the neural mechanism supporting recollection in older adults whilst also highlighting the potential issues with interpreting average ERPs in older adult populations.

AB - Although the neural mechanism supporting episodic recollection has been well characterized in younger adults, exactly how recollection is supported in older adults remains unclear. The electrophysiological correlate of recollection-the parietal retrieval success effect-for example, has been shown to be sensitive to both the amount of information recollected and the accuracy of remembered information in younger adults. To date, there is mixed evidence that parietal effect also scales with the amount of information remembered in older adults whilst there is little evidence that the same mechanism is sensitive to the accuracy of recollected information. Here, we address one potential concern when investigating Event Related Potentials (ERPs) among older adults-namely, the greater potential for single-trial latency variability to smear and reduces the amplitudes of averaged ERPs. We apply a well-established algorithm for correcting single-trial latency variability, Residual Iteration Decomposition Analysis (RIDE), to investigate whether the parietal retrieval success effect among older adults is sensitive to retrieval accuracy. Our results reveal that similar to younger adults, older adult parietal retrieval success effects scale with the accuracy of recollected information-i.e., is greater in magnitude when recollected information is of high accuracy, reduced in magnitude when accuracy is low, and entirely absent when guessing. The results help clarify the functional significance of the neural mechanism supporting recollection in older adults whilst also highlighting the potential issues with interpreting average ERPs in older adult populations.

KW - Cognitive aging

KW - Episodic recollection

KW - Parietal ERP effect

KW - Residual iteration decomposition analysis

KW - Retrieval accuracy

U2 - 10.3389/fnagi.2019.00179

DO - 10.3389/fnagi.2019.00179

M3 - Article

AN - SCOPUS:85069898330

VL - 10

JO - Frontiers in Aging Neuroscience

JF - Frontiers in Aging Neuroscience

SN - 1663-4365

M1 - 179

ER -

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