TY - JOUR
T1 - Resting frontal gamma power at 16, 24 and 36 months predicts individual differences in language and cognition at 4 and 5 years
AU - Gou, Zhenkun
AU - Choudhury, Naseem
AU - Benasich, April A.
N1 - Funding Information: This research was supported by Grant RO1-HD29419 from NIH/NICHD, NSF grant #SBE-0542013 to the Temporal Dynamics of Learning Center, with additional funding from the Elizabeth H. Solomon Center for Neurodevelopmental Research. We want to particularly thank the parents and children who participated in this study.
PY - 2011/7/7
Y1 - 2011/7/7
N2 - Gamma activity has been linked to a variety of different cognitive processes and exists in both transient and persistent forms. Across studies, different brain regions have been suggested to contribute to gamma activity. Multiple studies have shown that the function of gamma oscillations may be related to temporal binding of early sensory information to relevant top-down processes. Given this hypothesis, we expected gamma oscillations to subserve general brain mechanisms that contribute to the development of cognitive and linguistic systems. The present study aims to examine the predictive relations between resting-state cortical gamma power density at a critical point in language and cognitive acquisition (i.e. 16, 24 and 36 months), and cognitive and language output at ages 4 and 5 years.Our findings show that both 24- and 36-month gamma power are significantly correlated with later language scores, notably Non-Word Repetition. Further, 16-, 24- and 36-month gamma were all significantly correlated with 4-year PLS-3 and CELF-P sentence structure scores.Although associations reported here do not reflect a direct cause and effect of early resting gamma power on later language outcomes, capacity to generate higher power in the gamma range at crucial developmental periods may index better modulation of attention and allow easier access to working memory, thus providing an advantage for overall development, particularly in the linguistic domain. Moreover, measuring abilities at times when these abilities are still emergent may allow better prediction of later outcomes.
AB - Gamma activity has been linked to a variety of different cognitive processes and exists in both transient and persistent forms. Across studies, different brain regions have been suggested to contribute to gamma activity. Multiple studies have shown that the function of gamma oscillations may be related to temporal binding of early sensory information to relevant top-down processes. Given this hypothesis, we expected gamma oscillations to subserve general brain mechanisms that contribute to the development of cognitive and linguistic systems. The present study aims to examine the predictive relations between resting-state cortical gamma power density at a critical point in language and cognitive acquisition (i.e. 16, 24 and 36 months), and cognitive and language output at ages 4 and 5 years.Our findings show that both 24- and 36-month gamma power are significantly correlated with later language scores, notably Non-Word Repetition. Further, 16-, 24- and 36-month gamma were all significantly correlated with 4-year PLS-3 and CELF-P sentence structure scores.Although associations reported here do not reflect a direct cause and effect of early resting gamma power on later language outcomes, capacity to generate higher power in the gamma range at crucial developmental periods may index better modulation of attention and allow easier access to working memory, thus providing an advantage for overall development, particularly in the linguistic domain. Moreover, measuring abilities at times when these abilities are still emergent may allow better prediction of later outcomes.
KW - Cognitive development
KW - Gamma power
KW - Language
KW - Resting EEG
KW - Working memory
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U2 - 10.1016/j.bbr.2011.01.048
DO - 10.1016/j.bbr.2011.01.048
M3 - Article
C2 - 21295619
SN - 0166-4328
VL - 220
SP - 263
EP - 270
JO - Behavioural Brain Research
JF - Behavioural Brain Research
IS - 2
ER -