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The impact of age and education on phonemic and semantic verbal fluency: Behavioral and fMRI correlates

Fonseca, R. P.; Marcotte, K.; Hubner, L. C.; ZIMMERMANN, N.; Netto, T. M.; Bizzo, B.; Döring, T.; Landeira-Fernandez, J.; Gasparetto, E. L.; Joanette, Y.; Ansaldo, A. I.

2021-01-14 neuroscience
10.1101/2021.01.14.426642 bioRxiv
Show abstract

The purpose of this study was to examine the impact of age and education on the neural and behavioral correlates of verbal fluency. Forty-eight healthy adult participants were included: high-educated young and elderly, low-educated young and elderly. Participants performed semantic and phonemic and a control task during fMRI scanning. The phonemic fluency data showed an education effect across age groups. As for the semantic fluency data, there was an education effect only in young participants. The second-level fMRI results showed, in phonemic fluency, a main effect of age in the left posterior cingulate, superior temporal gyrus (STG) and right caudate, whereas the main effect of education involved activation in the right semantic fluency, there were a main effect of age in the left paracentral lobule and posterior cingulate, a main effect of education in the left claustrum and an interaction in the right claustrum and STG and the hippocampus bilaterally.

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