Hippocampal morphology and cognitive functions in community-dwelling older people: The Lothian Birth Cohort 1936

Maria del Carmen Valdés Hernández, Simon R. Cox, Jaeil Kim, Natalie A. Royle, Susana Muñoz Maniega, Alan J. Gow, Devasuda Anblagan, Mark E. Bastin, Jinah Park, John M. Starr, Joanna M. Wardlaw, Ian J. Deary

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Abstract

Structural measures of the hippocampus have been linked to a variety of memory processes and also to broader cognitive abilities. Gross volumetry has been widely used, yet the hippocampus has a complex formation, comprising distinct subfields which may be differentially sensitive to the deleterious effects of age, and to different aspects of cognitive performance. However, a comprehensive analysis of multidomain cognitive associations with hippocampal deformations among a large group of cognitively normal older adults is currently lacking. In 654 participants of the Lothian Birth Cohort 1936 (mean age = 72.5, SD = 0.71 years), we examined associations between the morphology of the hippocampus and a variety of memory tests (spatial span, letter-number sequencing, verbal recall, and digit backwards), as well as broader cognitive domains (latent measures of speed, fluid intelligence, and memory). Following correction for age, sex, and vascular risk factors, analysis of memory subtests revealed that only right hippocampal associations in relation to spatial memory survived type 1 error correction in subiculum and in CA1 at the head (β = 0.201, p = 5.843 × 10−4, outward), and in the ventral tail section of CA1 (β = −0.272, p = 1.347 × 10−5, inward). With respect to latent measures of cognitive domains, only deformations associated with processing speed survived type 1 error correction in bilateral subiculum (βabsolute ≤ 0.247, p < 1.369 × 10−4, outward), bilaterally in the ventral tail section of CA1 (βabsolute ≤ 0.242, p < 3.451 × 10−6, inward), and a cluster at the left anterior-to-dorsal region of the head (β = 0.199, p = 5.220 × 10−6, outward). Overall, our results indicate that a complex pattern of both inward and outward hippocampal deformations are associated with better processing speed and spatial memory in older age, suggesting that complex shape-based hippocampal analyses may provide valuable information beyond gross volumetry.
Original languageEnglish
Pages (from-to)1–11
Number of pages11
JournalNeurobiology of Aging
Volume52
Early online date21 Dec 2016
DOIs
StatePublished - Apr 2017

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memory
Hippocampus
age
Spatial Memory
speed
morphology
birth
error
error correction
Intelligence
Statistical Factor Analysis
Blood Vessels
measurement method
apartment
cognitive ability
factor analysis
intelligence
letter
adult
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del Carmen Valdés Hernández, M., Cox, S. R., Kim, J., Royle, N. A., Muñoz Maniega, S., Gow, A. J., ... Deary, I. J. (2017). Hippocampal morphology and cognitive functions in community-dwelling older people: The Lothian Birth Cohort 1936. Neurobiology of Aging, 52, 1–11. DOI: 10.1016/j.neurobiolaging.2016.12.012

del Carmen Valdés Hernández, Maria; Cox, Simon R.; Kim, Jaeil; Royle, Natalie A.; Muñoz Maniega, Susana; Gow, Alan J.; Anblagan, Devasuda; Bastin, Mark E.; Park, Jinah; Starr, John M.; Wardlaw, Joanna M.; Deary, Ian J. / Hippocampal morphology and cognitive functions in community-dwelling older people: The Lothian Birth Cohort 1936.

In: Neurobiology of Aging, Vol. 52, 04.2017, p. 1–11.

Research output: Contribution to journalArticle

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abstract = "Structural measures of the hippocampus have been linked to a variety of memory processes and also to broader cognitive abilities. Gross volumetry has been widely used, yet the hippocampus has a complex formation, comprising distinct subfields which may be differentially sensitive to the deleterious effects of age, and to different aspects of cognitive performance. However, a comprehensive analysis of multidomain cognitive associations with hippocampal deformations among a large group of cognitively normal older adults is currently lacking. In 654 participants of the Lothian Birth Cohort 1936 (mean age = 72.5, SD = 0.71 years), we examined associations between the morphology of the hippocampus and a variety of memory tests (spatial span, letter-number sequencing, verbal recall, and digit backwards), as well as broader cognitive domains (latent measures of speed, fluid intelligence, and memory). Following correction for age, sex, and vascular risk factors, analysis of memory subtests revealed that only right hippocampal associations in relation to spatial memory survived type 1 error correction in subiculum and in CA1 at the head (β = 0.201, p = 5.843 × 10−4, outward), and in the ventral tail section of CA1 (β = −0.272, p = 1.347 × 10−5, inward). With respect to latent measures of cognitive domains, only deformations associated with processing speed survived type 1 error correction in bilateral subiculum (βabsolute ≤ 0.247, p < 1.369 × 10−4, outward), bilaterally in the ventral tail section of CA1 (βabsolute ≤ 0.242, p < 3.451 × 10−6, inward), and a cluster at the left anterior-to-dorsal region of the head (β = 0.199, p = 5.220 × 10−6, outward). Overall, our results indicate that a complex pattern of both inward and outward hippocampal deformations are associated with better processing speed and spatial memory in older age, suggesting that complex shape-based hippocampal analyses may provide valuable information beyond gross volumetry.",
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del Carmen Valdés Hernández, M, Cox, SR, Kim, J, Royle, NA, Muñoz Maniega, S, Gow, AJ, Anblagan, D, Bastin, ME, Park, J, Starr, JM, Wardlaw, JM & Deary, IJ 2017, 'Hippocampal morphology and cognitive functions in community-dwelling older people: The Lothian Birth Cohort 1936' Neurobiology of Aging, vol 52, pp. 1–11. DOI: 10.1016/j.neurobiolaging.2016.12.012

Hippocampal morphology and cognitive functions in community-dwelling older people: The Lothian Birth Cohort 1936. / del Carmen Valdés Hernández, Maria; Cox, Simon R.; Kim, Jaeil; Royle, Natalie A.; Muñoz Maniega, Susana; Gow, Alan J.; Anblagan, Devasuda; Bastin, Mark E.; Park, Jinah; Starr, John M.; Wardlaw, Joanna M.; Deary, Ian J.

In: Neurobiology of Aging, Vol. 52, 04.2017, p. 1–11.

Research output: Contribution to journalArticle

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AU - Muñoz Maniega,Susana

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del Carmen Valdés Hernández M, Cox SR, Kim J, Royle NA, Muñoz Maniega S, Gow AJ et al. Hippocampal morphology and cognitive functions in community-dwelling older people: The Lothian Birth Cohort 1936. Neurobiology of Aging. 2017 Apr;52:1–11. Available from, DOI: 10.1016/j.neurobiolaging.2016.12.012