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Abacus experts have demonstrated extraordinary potential of mental calculation by using an imaginary abacus. But the neural correlates of abacus mental calculation and the imaginary abacus still remain unclear. Here, we report, respectively, the analysis of fMRI images of abacus experts and non-experts in response to the performance of simple and complex(More)
OBJECTIVE To explore the potential mechanism of generalized anxiety disorders (GAD). METHODS Ten GAD patients and 10 sex- and age-matched healthy persons underwent functional magnetic resonance imaging (fMRI) study in 2 stages by block design: auditory presentation of the stimulation task. In experiment 1 emotionally neutral words were given and then(More)
The genus Paris in the broad concept is an economically important group in the monocotyledonous family Melanthiaceae (tribe Parideae). The phylogeny of Paris was controversial in previous morphology-based classification and molecular phylogeny. Here, the complete cp genomes of eleven Paris taxa were sequenced, to better understand the evolutionary(More)
OBJECTIVE To explore the heterogeneity of aging brain. METHODS Blood oxygenation level dependent functional magnetic resonance imaging was performed on 10 subjects meeting the standards of successful aging (SA), 9 subjects meeting the standards of usual aging (UA), and 9 subjects meeting the criteria of mild cognitive impairment (MCI), all age, and(More)
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