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Impact of inspiratory threshold loading on brain activity and cognitive performances in healthy humans.
In healthy humans, inspiratory threshold loading deteriorates cognitive performances. This can result from motor-cognitive interference (activation of motor respiratory-related cortical networks vs. executive resources allocation), sensory-cognitive interference (dyspnea vs. shift in attentional focus), or both. We hypothesized that inspiratory loading would concomitantly induce dyspnea, activate …
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Spontaneous Fluctuations in the Flexible Control of Covert Attention.
Spontaneous fluctuations in cognitive flexibility are characterized by moment-to-moment changes in the efficacy of control over attentional shifts. We used fMRI to investigate the neural correlates in humans of spontaneous fluctuations in readiness to covertly shift attention between two peripheral rapid serial visual presentation streams. Target detection response time (RT) after a shift or hold …
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Rehearsal of tactile working memory: Premotor cortex recruits two dissociable neuronal content representations.
Recent working memory (WM) research has focused on identifying brain regions that retain different types of mental content. Only few neuroimaging studies have explored the mechanism of attention-based refreshing, which is a type of rehearsal and is thought to implement the dynamic components of WM allowing for update of WM contents. Here, we took advantage of the distinct coding properties of the …
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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A neural model of cortico-cerebellar interactions during attentive imitation and predictive learning of sequential handwriting movements.
Much sensory-motor behavior develops through imitation, as during the learning of handwriting by children. Such complex sequential acts are broken down into distinct motor control synergies, or muscle groups, whose activities overlap in time to generate continuous, curved movements that obey an inverse relation between curvature and speed. How are such complex movements learned through attentive i…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Saccade suppression exerts global effects on the motor system.
Stopping inappropriate eye movements is a cognitive control function that allows humans to perform well in situations that demand attentional focus. The stop-signal task is an experimental model for this behavior. Participants initiate a saccade toward a target and occasionally have to try to stop the impending saccade if a stop signal occurs. Prior research using a version of this paradigm for li…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Prior expectation modulates the interaction between sensory and prefrontal regions in the human brain.
How do expectations about the identity of a forthcoming visual stimulus influence the neural mechanisms of perceptual decision making in the human brain? Previous investigations into this issue have mostly involved changing the subjects' attentional focus or the behavioral relevance of certain targets but rarely manipulated subjects' prior expectation about the likely identity of the stimulus. Als…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Covert shift of attention modulates the ongoing neural activity in a reaching area of the macaque dorsomedial visual stream.
Attention is used to enhance neural processing of selected parts of a visual scene. It increases neural responses to stimuli near target locations and is usually coupled to eye movements. Covert attention shifts, however, decouple the attentional focus from gaze, allowing to direct the attention to a peripheral location without moving the eyes. We tested whether covert attention shifts modulate on…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Focus of Attention Impacts Brain Activity and Connectivity Early After Anterior Cruciate Ligament Reconstruction.
Individuals who undergo anterior cruciate ligament reconstruction (ACLR) have altered sensorimotor brain activity that can persist for years. Directing an individual's focus of attention (FoA) using instructional cues during rehabilitation and motor control training can impact movement performance, but the direct effects on sensorimotor brain activity and network-level relationships in an ACLR pop…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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The brain basis of piano performance.
Performances of memorized piano compositions unfold via dynamic integrations of motor, perceptual, cognitive, and emotive operations. The functional neuroanatomy of such elaborately skilled achievements was characterized in the present study by using (15)0-water positron emission tomography to image blindfolded pianists performing a concerto by J.S. Bach. The resulting brain activity was reference…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Changes in the Brain with an External Focus of Attention: Neural Correlates.
Although it is well established that an external compared to an internal focus of attention enhances motor performance and learning, the underlying neural mechanisms remained relatively underexplored. Recent studies revealed that adopting different attentional strategies results in a differential corticomotor organization. These findings hold great potential for applying attentional strategies for…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」