Neuroscience
Nakai T, Kato C, & Matsuo K. An FMRI study to investigate auditory attention: A model of the cocktail party phenomenon. Magnetic Resonance Medical Science. 2005; 4(2): 75-82.
Functional Brain Imaging Laboratory, Department of Gerontechnology, National Center for Geriatrics and Gerontology.
In human life, discrimination of a target voice from other voices or sounds is indispensable, and inability for such discrimination results in sensory aphasia. To investigate the neuronal basis of the attentional system for human voices, we evaluated brain activity during listening comprehension tasks using functional magnetic resonance imaging (fMRI) at 3T. Diotic listening comprehension tasks, in which a narration was superimposed by another given by the same speaker (SV experiment) or by a different speaker (DV experiment), were presented to normal volunteers. The story indicated in the baseline task blocks, in which only one narration was presented, was intensively followed during the superimposed task blocks. In each experiment, 6 task blocks, 3 blocks for each condition, and 7 rest blocks were alternatively repeated, and the contrast of the superimposed condition to the baseline condition in each session was obtained. In the DV experiment, compared with the control condition, activation in Wernicke's area (BA22) was increased. In the SV experiment, activation in the frontal association cortex (BA6, BA9/ 46, BA32, BA13/47) was additionally increased. These results suggested that difficulty in phonological processing to discriminate human voices calls for further semantic, syntactic, and prosodic processing, as well as augmented selective attention.
PMID: 16340161 [PubMed - as supplied by publisher]
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Anthony H. Risser | neuroscience | neuropsychology | brain
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Usui N, Haji T, Maruyama M, Katsuyama N, Uchida S, Hozawa A, Omori K, Tsuji I, Kawashima R, & Taira M. (2009). Cortical areas related to performance of WAIS Digit Symbol Test: a functional imaging study. Neurosci Lett. Jul 21. Many neuropsychological...
Neuroscience
Abstract of the Day: fMRI and Auditory Attention
Nakai T, Kato C, & Matsuo K. An FMRI study to investigate auditory attention: A model of the cocktail party phenomenon. Magnetic Resonance Medical Science. 2005; 4(2): 75-82.
Functional Brain Imaging Laboratory, Department of Gerontechnology, National Center for Geriatrics and Gerontology.
In human life, discrimination of a target voice from other voices or sounds is indispensable, and inability for such discrimination results in sensory aphasia. To investigate the neuronal basis of the attentional system for human voices, we evaluated brain activity during listening comprehension tasks using functional magnetic resonance imaging (fMRI) at 3T. Diotic listening comprehension tasks, in which a narration was superimposed by another given by the same speaker (SV experiment) or by a different speaker (DV experiment), were presented to normal volunteers. The story indicated in the baseline task blocks, in which only one narration was presented, was intensively followed during the superimposed task blocks. In each experiment, 6 task blocks, 3 blocks for each condition, and 7 rest blocks were alternatively repeated, and the contrast of the superimposed condition to the baseline condition in each session was obtained. In the DV experiment, compared with the control condition, activation in Wernicke's area (BA22) was increased. In the SV experiment, activation in the frontal association cortex (BA6, BA9/ 46, BA32, BA13/47) was additionally increased. These results suggested that difficulty in phonological processing to discriminate human voices calls for further semantic, syntactic, and prosodic processing, as well as augmented selective attention.
PMID: 16340161 [PubMed - as supplied by publisher]
-
Anthony H. Risser | neuroscience | neuropsychology | brain
- Wise-guy On Pet, Part 2
And why all other methods in cognitive neuroscience (with the parenthetical exception of intracranial EEG) are rubbish. From his April 15 talk at the 15th annual meeting of the Cognitive Neuroscience Society. After our initial recap of the wit and wisdom...
- Daydreaming And Thought-sampling
OK, is there anything new in the daydreaming article in Science? Fig. 2. Graphs depict regions that exhibited a significant positive relation [with a propensity to daydream], r(14) > 0.50, P < .05 (A) Bilateral mPFC; (B) Bilateral precuneus and posterior...
- Neural Correlates Of A Mystical Experience In Carmelite Nuns
The title of this article by Beauregard and Paquette is a little misleading, because "God can’t be summoned at will." Beauregard M, Paquette V. (2006). Neural correlates of a mystical experience in Carmelite nuns. Neurosci Lett. Jul 25; [Epub ahead...
- Neuropsychology Abstract Of The Day: Route Navigation And Route Knowledge
Landmark sequencing and route knowledge: An fMRI study Cortex. 2011 Dec 16; Nemmi F, Piras F, Péran P, Incoccia C, Sabatini U, Guariglia C Abstract INTRODUCTION: The ability to navigate in a familiar environment mainly relies on route knowledge, that...
- Neuropsychology Abstract Of The Day: Fmri Study Of Digit Symbol Task
Usui N, Haji T, Maruyama M, Katsuyama N, Uchida S, Hozawa A, Omori K, Tsuji I, Kawashima R, & Taira M. (2009). Cortical areas related to performance of WAIS Digit Symbol Test: a functional imaging study. Neurosci Lett. Jul 21. Many neuropsychological...