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Your search keyword '"Penhale, Samantha H."' showing total 11 results
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11 results on '"Penhale, Samantha H."'

6. Developmental changes in endogenous testosterone have sexually‐dimorphic effects on spontaneous cortical dynamics

Author

Picci, Giorgia, primary, Ott, Lauren R., additional, Penhale, Samantha H., additional, Taylor, Brittany K., additional, Johnson, Hallie J., additional, Willett, Madelyn P., additional, Okelberry, Hannah J., additional, Wang, Yu‐Ping, additional, Calhoun, Vince D., additional, Stephen, Julia M., additional, and Wilson, Tony W., additional

Published
2023
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7. Healthy aging alters the oscillatory dynamics and fronto‐parietal connectivity serving fluid intelligence.

Author

Penhale, Samantha H., Arif, Yasra, Schantell, Mikki, Johnson, Hallie J., Willett, Madelyn P., Okelberry, Hannah J., Meehan, Chloe E., Heinrichs‐Graham, Elizabeth, and Wilson, Tony W.

Subjects
*FLUID intelligence, *OLDER people, *MOTOR cortex, *MAGNETOENCEPHALOGRAPHY, *OSCILLATIONS
Abstract

Fluid intelligence (Gf) involves logical reasoning and novel problem‐solving abilities. Often, abstract reasoning tasks like Raven's progressive matrices are used to assess Gf. Prior work has shown an age‐related decline in fluid intelligence capabilities, and although many studies have sought to identify the underlying mechanisms, our understanding of the critical brain regions and dynamics remains largely incomplete. In this study, we utilized magnetoencephalography (MEG) to investigate 78 individuals, ages 20–65 years, as they completed an abstract reasoning task. MEG data was co‐registered with structural MRI data, transformed into the time–frequency domain, and the resulting neural oscillations were imaged using a beamformer. We found worsening behavioral performance with age, including prolonged reaction times and reduced accuracy. MEG analyses indicated robust oscillations in the theta, alpha/beta, and gamma range during the task. Whole brain correlation analyses with age revealed relationships in the theta and alpha/beta frequency bands, such that theta oscillations became stronger with increasing age in a right prefrontal region and alpha/beta oscillations became stronger with increasing age in parietal and right motor cortices. Follow‐up connectivity analyses revealed increasing parieto‐frontal connectivity with increasing age in the alpha/beta frequency range. Importantly, our findings are consistent with the parieto‐frontal integration theory of intelligence (P‐FIT). These results further suggest that as people age, there may be alterations in neural responses that are spectrally specific, such that older people exhibit stronger alpha/beta oscillations across the parieto‐frontal network during abstract reasoning tasks. [ABSTRACT FROM AUTHOR]

Published
2024
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9. Developmental differences in functional organization of multispectral networks

Author

Petro, Nathan M, primary, Picci, Giorgia, additional, Embury, Christine M, additional, Ott, Lauren R, additional, Penhale, Samantha H, additional, Rempe, Maggie P, additional, Johnson, Hallie J, additional, Willett, Madelyn P, additional, Wang, Yu-Ping, additional, Stephen, Julia M, additional, Calhoun, Vince D, additional, Doucet, Gaelle E, additional, and Wilson, Tony W, additional

Published
2023
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10. Spontaneous cortical dynamics from the first years to the golden years

Author

Rempe, Maggie P., primary, Ott, Lauren R., additional, Picci, Giorgia, additional, Penhale, Samantha H., additional, Christopher-Hayes, Nicholas J., additional, Lew, Brandon J., additional, Petro, Nathan M., additional, Embury, Christine M., additional, Schantell, Mikki, additional, Johnson, Hallie J., additional, Okelberry, Hannah J., additional, Losh, Kathryn L., additional, Willett, Madelyn P., additional, Losh, Rebecca A., additional, Wang, Yu-Ping, additional, Calhoun, Vince D., additional, Stephen, Julia M., additional, Heinrichs-Graham, Elizabeth, additional, Kurz, Max J., additional, and Wilson, Tony W., additional

Published
2023
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