Publications by authors named "Seiichirou Yokoo"

Article Synopsis
  • Transcranial direct current stimulation (tDCS) shows promise for improving cognitive functions and treating cognitive disorders, but variable outcomes raise concerns about its safety and effectiveness due to unclear neural mechanisms.
  • The study investigates tDCS effects on macaque monkeys' cognitive abilities and neuron activity, revealing that tDCS reduced practice-related response slowdowns and altered neuron firing patterns compared to sham stimulation.
  • After tDCS, changes in behavior and neuron activity were observed to persist, indicating potential lasting effects, but tDCS did not significantly alter baseline neuron firing rates across multiple applications.
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Humans demonstrate behavioural advantages (biases) towards particular dimensions (colour or shape of visual objects), but such biases are significantly altered in neuropsychological disorders. Recent studies have shown that lesions in the prefrontal cortex do not abolish dimensional biases, and therefore suggest that such biases might not depend on top-down prefrontal-mediated attention and instead emerge as bottom-up processing advantages. We hypothesised that if dimensional biases merely emerge from an enhancement of object features, the presence of visual objects would be necessary for the manifestation of dimensional biases.

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A modified back-projection approach deduced from an exact reconstruction solution was applied to our photoacoustic tomography of the optical absorption in biological tissues. Pulses from a Ti:sapphire laser (4.7 ns FWHM at 789.

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