Age-related differences in the brain areas outside the classical language areas among adults using category decision task  

Oleh:

Cho, Yong Won ; Song, Hui-Jin ; Lee, Jae Jun ; Lee, Joo Hwa ; Lee, Hui Joong ; Yi, Sang Doe ; Chang, Hyuk Won ; Berl, Madison M. ; Gaillard, William D. ; Chang, Yongmin

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 120 no. 3 (2012), page 372-380.
Topik: Language; fMRI; Laterality; Cognition
Fulltext: 120_03_Cho.pdf (1.07MB)

Isi artikel

Older adults perform much like younger adults on language. This similar level of performance, however, may come about through different underlying brain processes. In the present study, we evaluated agerelated differences in the brain areas outside the typical language areas among adults using a category decision task. Our results showed that similar activation patterns were found in classical language processing areas across the three age groups although regional lateralization indices in Broca’s and Wernicke’s areas decreased with age. The greatest differences, however, among the three groups were found primarily in the brain areas not associated with core language functioning including the hippocampus, middle frontal gyrus, ventromedial frontal cortex, medial superior parietal cortex and posterior cingulate cortex. Therefore, the non-classical language areas may exhibit an age-related difference between three age groups while the subjects show a similar activation pattern in the core, primary language processing during a semantic decision task.

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