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Cortical activity predicts which older adults recognize speech in noise and when


, : Cortical activity predicts which older adults recognize speech in noise and when. Journal of Neuroscience 35(9): 3929-3937

Speech recognition in noise can be challenging for older adults and elicits elevated activity throughout a cingulo-opercular network that is hypothesized to monitor and modify behaviors to optimize performance. A word recognition in noise experiment was used to test the hypothesis that cingulo-opercular engagement provides performance benefit for older adults. Healthy older adults (N = 31; 50-81 years of age; mean pure tone thresholds <32 dB HL from 0.25 to 8 kHz, best ear; species: human) performed word recognition in multitalker babble at 2 signal-to-noise ratios (SNR = +3 or +10 dB) during a sparse sampling fMRI experiment. Elevated cingulo-opercular activity was associated with an increased likelihood of correct recognition on the following trial independently of SNR and performance on the preceding trial. The cingulo-opercular effect increased for participants with the best overall performance. These effects were lower for older adults compared with a younger, normal-hearing adult sample (N = 18). Visual cortex activity also predicted trial-level recognition for the older adults, which resulted from discrete decreases in activity before errors and occurred for the oldest adults with the poorest recognition. Participants demonstrating larger visual cortex effects also had reduced fractional anisotropy in an anterior portion of the left inferior frontal-occipital fasciculus, which projects between frontal and occipital regions where activity predicted word recognition. Together, the results indicate that older adults experience performance benefit from elevated cingulo-opercular activity, but not to the same extent as younger adults, and that declines in attentional control can limit word recognition.

US$19.90

PMID: 25740521

DOI: 10.1523/JNEUROSCI.2908-14.2015


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Lopes, R.; Simões, Mário.R.; Ferraz, Lís.; Leal, A.J.R., 2014: The mismatch negativity (MMN) potential as a tool for the functional mapping of temporal lobe epilepsies. Temporal lobe epilepsies are associated with cognitive dysfunctions in memory which are important clues currently used clinically for the lateralization of the epileptic focus in evaluations for epilepsy surgery. Because these lobes also contain t...

Prockop, D.J.; Juva, K.; Engel, J., 1967: Enzymatic synthesis of hydroxyproline by the hydroxylation of poly. [C14]Proline labeled polytripeptides of the structure [C14]Pro-Gly-Pro)n were prepared and fractionated. Fractionation of the polytripeptide preparations on a Sephadex G-50 column gave fractions ranging in molecular weight from about 1,700 to abou...

Jennings R.C.; Fisher C.; Morris T.R., 1972: Changes in the protein requirements of pullets during the 1st laying year. British Poultry Science 13(3): 279-281

Reuter H.; Seitz N., 1967: Investigations of the kinetics of calcium 45 efflux in guinea pig auricles. Naunyn-Schmiedebergs Archiv fuer Pharmakologie und Experimentelle Pathologie 257(3): 324-325

Guillaume, J.; Djindjian, R.; Pansini, A., 1959: Concerning 80 cases of hemispheric angiomas; therapeutic considerations & surgical indications. Gazette Medicale de France 66(14): 1211-2 Passim

Olmo-Vidal, J.M.ria.; Llimona, F., 2000: Ecological study of Orthoptera of the Hyparrhenietum hirto-pubescentis from the Parc de Collserola Estudi ecologic dels ortopters dels prats sabanoides dalbellatge al Parc de Collserola. Unknown

Lilly, D.J.; Franzen, R.L., 1968: Reproducing styli for speech audiometry. Journal of Speech and Hearing Research 11(4): 817-824

Debry, G.; Schaub, C.; Drouin, P.; Szikla, G.; Talairach, J., 1977: Indications and results of interstitial hypophyseal stereo-gammatherapy in the treatment of diabetic retinopathy. New interest for pituitary neurosurgery in diabetic retinopathy is based on several data: long-term efficacy of various medical therapeutic agents is still unproved, ocular treatment by photocoagulation remains symptomatic, growth-hormone (HGH) ha...

Knight, S.; Fetters, L., 2011: Clinical bottom line. Intensive motor skills training program combining group and individual sessions for children with cerebral palsy. Pediatric Physical Therapy 22(2): 160-160

Schmitt, M.; Esslinger, J.; Seeger, K.; Blobel, H., 1994: Immunoglobulin A deficiency and impaired resistance to chronic dermatitis in dogs. IgA and IgG were measured in blood from 44 Beagles and 64 crossbred Labrador x Harrier dogs. IgA values were subnormal in 16 dogs with ringworm and in 16 with demodicosis. The ability of granulocytes to phagocytose staphylococci was also impaired...