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Increasing memory load modulates regional brain activity in older adults as measured by fMRI.

Publication ,  Journal Article
Petrella, JR; Townsend, BA; Jha, AP; Ziajko, LA; Slavin, MJ; Lustig, C; Hart, SJ; Doraiswamy, PM
Published in: J Neuropsychiatry Clin Neurosci
2005

Several recent studies using functional magnetic resonance imaging (fMRI) during recognition memory tests have suggested that the ability to neuromodulate as a function of cognitive demand may be impaired in older adults due to age-related cell loss and neural volume reduction in memory specific regions. In the current study, older adults (ages 59-77) were tested with fMRI during a delayed-recognition task in which memory load for faces was varied across trials. Activity was greater in amplitude for three- versus one-face stimuli within the superior, middle, and inferior frontal gyri, intraparietal sulcus, and fusiform gyrus. It was concluded that the ability to modulate activity with increasing load is preserved in older adults despite reductions in neural volume.

Duke Scholars

Published In

J Neuropsychiatry Clin Neurosci

DOI

ISSN

0895-0172

Publication Date

2005

Volume

17

Issue

1

Start / End Page

75 / 83

Location

United States

Related Subject Headings

  • Time Factors
  • Recognition, Psychology
  • Psychiatry
  • Photic Stimulation
  • Middle Aged
  • Memory
  • Male
  • Magnetic Resonance Imaging
  • Humans
  • Female
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Petrella, J. R., Townsend, B. A., Jha, A. P., Ziajko, L. A., Slavin, M. J., Lustig, C., … Doraiswamy, P. M. (2005). Increasing memory load modulates regional brain activity in older adults as measured by fMRI. J Neuropsychiatry Clin Neurosci, 17(1), 75–83. https://doi.org/10.1176/jnp.17.1.75
Petrella, Jeffrey R., Brent A. Townsend, Amishi P. Jha, Lauretta A. Ziajko, Melissa J. Slavin, Cindy Lustig, Sarah J. Hart, and P Murali Doraiswamy. “Increasing memory load modulates regional brain activity in older adults as measured by fMRI.J Neuropsychiatry Clin Neurosci 17, no. 1 (2005): 75–83. https://doi.org/10.1176/jnp.17.1.75.
Petrella JR, Townsend BA, Jha AP, Ziajko LA, Slavin MJ, Lustig C, et al. Increasing memory load modulates regional brain activity in older adults as measured by fMRI. J Neuropsychiatry Clin Neurosci. 2005;17(1):75–83.
Petrella, Jeffrey R., et al. “Increasing memory load modulates regional brain activity in older adults as measured by fMRI.J Neuropsychiatry Clin Neurosci, vol. 17, no. 1, 2005, pp. 75–83. Pubmed, doi:10.1176/jnp.17.1.75.
Petrella JR, Townsend BA, Jha AP, Ziajko LA, Slavin MJ, Lustig C, Hart SJ, Doraiswamy PM. Increasing memory load modulates regional brain activity in older adults as measured by fMRI. J Neuropsychiatry Clin Neurosci. 2005;17(1):75–83.
Journal cover image

Published In

J Neuropsychiatry Clin Neurosci

DOI

ISSN

0895-0172

Publication Date

2005

Volume

17

Issue

1

Start / End Page

75 / 83

Location

United States

Related Subject Headings

  • Time Factors
  • Recognition, Psychology
  • Psychiatry
  • Photic Stimulation
  • Middle Aged
  • Memory
  • Male
  • Magnetic Resonance Imaging
  • Humans
  • Female