Abstract
BackgroundIn this study we investigated the role of hippocampal volume (HV) in visual memory.MethodsParticipants were a subsample of older adults (> = 70 years) from the Einstein Aging Study. Visual performance was measured using the Complex Figure (CF) copy and delayed recall tasks from the Repeatable Battery for the Assessment of Neuropsychological Status. Linear regressions were fitted to study associations between HV and visual tasks.ResultsParticipants’ (n = 113, mean age = 78.9 years) average scores on the CF copy and delayed recall were 17.4 and 11.6, respectively. CF delayed recall was associated with total (β = .031, p = 0.001) and left (β = 0.031, p = 0.001) and right HVs (β = 0.24, p = 0.012). CF delayed recall remained significantly associated with left HV even after we also included right HV (β = 0.27, p = 0.025) and the CF copy task (β = 0.30, p = 0.009) in the model. CF copy did not show any significant associations with HV.ConclusionOur results suggest that left HV contributes in retrieval of visual memory in older adults.
Highlights
Medial temporal lobe structures, in particular the hippocampus, play an undisputed role in memory processes
Complex Figure (CF) delayed recall was associated with total (β = .031, p = 0.001) and left (β = 0.031, p = 0.001) and right hippocampal volume (HV) (β = 0.24, p = 0.012)
CF delayed recall remained significantly associated with left HV even after we included right HV (β = 0.27, p = 0.025) and the CF copy task (β = 0.30, p = 0.009) in the model
Summary
In particular the hippocampus, play an undisputed role in memory processes. The Complex Figure (CF) subtest from the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) incorporates a wide range of cognitive abilities, including visual perception, constructional praxis, planning and organization, and visual memory [13]. It differs from tests of spatial memory in that it uses a figural reproduction paradigm [14]. The delayed aspect of it is thought to reflect organizational and visual perceptual memory [13] This task has lately offered insights into research on mild cognitive impairment (MCI) and AD [15]. In this study we investigated the role of hippocampal volume (HV) in visual memory
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