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Age-related differences in the neural bases of phonological and semantic processes in the context of task-irrelevant information.
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Age-related differences in the neural bases of phonological and semantic processes.
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Age-related differences in resolving semantic and phonological competition during receptive language tasks.
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Lexical Frequency Affects Functional Activation and Accuracy in Picture Naming among Older and Younger Adults
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In: Psychol Aging (2020)
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Neural sensitivity to phonological characteristics is stable across the lifespan
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In: Neuroimage (2020)
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Investigating the effects of phonological neighbours on word retrieval and phonetic variation in word naming and picture naming paradigms ...
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Investigating the effects of phonological neighbours on word retrieval and phonetic variation in word naming and picture naming paradigms ...
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White Matter Disconnection is Related to Age-Related Phonological Deficits
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In: Brain Imaging Behav (2019)
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Abstract:
Older adults have more language production difficulties than younger adults but display largely comparable language comprehension abilities. The Transmission Deficit Hypothesis suggests that production difficulties stem from an age-related increase in phonological signal transmission failures, while the semantic system being more redundant than the phonological system allows comprehension to be relatively preserved despite signal failures. Though the neural instantiation of the Transmission Deficit Hypothesis remains an open question, white matter represents one important factor to investigate. Metrics indicative of white matter connectivity across the brain, namely, Radial Diffusivity (RD) and Fractional Anisotropy (FA) have also been linked to age-related cognitive differences including naming difficulties. Using a Picture-Word Interference (PWI) task with 18 younger and 19 older healthy adults, we found that, across ages, better picture naming in the presence of phonological distractors was associated with lower RD across dorsal (r = −.35, p = .03), ventral (r = −.34, p = .04), and fronto-striatal (r = −.33, p = .04) tracts, and higher FA along dorsal tracts (r =.43, p = .008). The pattern of lower RD and higher FA, which is thought to reflect better white matter structure, points to the dorsal stream tracts as critical for performance on the PWI task. Moreover, the effects of RD and FA on performance were attenuated by the effect of age, reflecting the shared variance between age and white matter as it relates to language production ability.
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URL: http://www.ncbi.nlm.nih.gov/pubmed/30937829 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7034773/ https://doi.org/10.1007/s11682-019-00086-8
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Investigating the effects of phonological neighbors on word retrieval and phonetic variation in word naming and picture naming paradigms
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In: Lang Cogn Neurosci (2019)
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Task difficulty modulates brain-behavior correlations in language production and cognitive control: Behavioral and fMRI evidence from a phonological Go No-Go picture naming paradigm
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Task difficulty modulates age-related differences in the behavioral and neural bases of language production
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Changes in White-Matter Connectivity in Late Second Language Learners: Evidence from Diffusion Tensor Imaging.
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In: Frontiers in psychology, vol 8, iss NOV (2017)
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Changes in White-Matter Connectivity in Late Second Language Learners: Evidence from Diffusion Tensor Imaging
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Age-related differences in resolving semantic and phonological competition during receptive language tasks
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Written distractor words influence brain activity during overt picture naming
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Age-related differences in the neural bases of phonological and semantic processes
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Electrophysiological differentiation of phonological and semantic integration in word and sentence contexts
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