Cerebral glucose consumption following verbal auditory stimulation

Kushner, Michael; Schwartz, Richard; Alavi, Abass; Dann, Robert; Rosen, Mitchell P.; Silver, Frank L.; Reivich, Martin

doi:10.1016/0006-8993(87)90743-8

Cited by 19 publications

(3 citation statements)

References 42 publications

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“…Most of these studies presented stimuli not involving any task (Celesia 1976;Khosla et al 2003;Loveless et al 1994;Mäkelä et al 1993;Pantev et al 1986;Pantev et al 1998;Reite et al 1981;Suzuki et al 2002;Tiihonen et al 1989) showing that in both hemispheres activation on contralateral stimulation is stronger than on ipsilateral stimulation. The same contralateral dominance was shown in studies in which the subjects had to perform a task e.g., to indicate a target word (Jäncke et al 2002b;Kushner et al 1987), to repeat words (Greenberg et al 1981;Hirano et al 1997) or to detect deviant stimuli (Woldorff et al 1999). Consistent with our results in experiment I these studies also reported stronger activation from contralateral than from FIG.…”

Section: Dependence Of Activation On Stimulation Sidementioning

confidence: 58%

Contralateral White Noise Selectively Changes Right Human Auditory Cortex Activity Caused by a FM-Direction Task

Behne¹,

Scheich²,

Brechmann³

2005

Journal of Neurophysiology

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Animal and human studies suggest that directional categorization of frequency-modulated (FM) tones (rising vs. falling) is a function of the right auditory cortex (AC). To investigate this hemispheric specialization in more detail, we analyzed both the binaural and monaural representation of FM tones and the influence of contralateral white noise on the processing of FM tone direction. In two fMRI-experiments, FM tones with varied direction, center-frequencies, and duration were presented binaurally or monaurally without contralateral white noise (experiment 1) and with contralateral white noise (experiment 2) while the subjects had to perform the same directional categorization task. In experiment 1, contralateral FM tones led to strongest activation, binaural FM tones to intermediate, and ipsilateral FM tones to weakest activation in each AC. This is in accordance with binaural response properties of neurons in animal AC. In experiment 2, contralateral white noise had no significant effect on the activation of left AC by FM tones, whereas in right AC, it led to a significant increase in activation for ipsilateral FM tones. This result provides further support for the critical role of right AC for directional categorization of FM tones, which for ipsilateral input has to be processed in competition to the excitatory input of white noise via the direct contralateral pathway.

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Section: Dependence Of Activation On Stimulation Sidementioning

confidence: 58%

Contralateral White Noise Selectively Changes Right Human Auditory Cortex Activity Caused by a FM-Direction Task

Behne¹,

Scheich²,

Brechmann³

2005

Journal of Neurophysiology

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“…The superior temporal gyri have been reported in previous PET studies with auditory stimuli (Alavi et al, 1981;Mazziotta et al, 1982Mazziotta et al, , 1983Kushner et al, 1987;Petersen et al, 1988Petersen et al, , 1990Wise et al, 1991;Frith et al, 1991;Zatorre, Evans, Meyer, & Gjedde, 1992), and were the only regjons to be activated by continuous speech regardless of whether it was understandable to the subject (French) or not (Tamil). However, the stories in French, contrary to those in Tamil, yielded an asymmetrical activation of these regions favoring the left hemisphere (Table 7).…”

Section: Acoustical Analysismentioning

confidence: 81%

“…Positron emission tomography (PET) makes it possible to observe active cerebral areas while normal subjects process language (Alavi, Reivich, Greenberg, Hand, Rosenquist, Rintelman, Christman, Fowler, Goldman, MacGregor, & Wolf, 1981;Mazziotta, Phelps, Carson, & Kuhl, 1982;Mazziotta, Phelps, & Halgren, 1983;Kushner, Schwartz, Alavi, Dann, Rosen, Silver, & Reivich, 1987;Petersen, Fox, Posner, Mintun, & Raichle, 1988 , 1991). So far, PET studies have mainly examined the cortical anatomy of single-word comprehension and production (Petersen et al, 1988Wise et al, 1991;Frith et al, 1991).…”

Section: Introductionmentioning

confidence: 97%

The Cortical Representation of Speech

Mazoyer¹,

Tzourio²,

Frak³

et al. 1993

Journal of Cognitive Neuroscience

637

377

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In this study, we compare regional cerebral blood flow (rCBF) while French monolingual subjects listen to continuous speech in an unknown language, to lists of French words, or to meaningful and distorted stories in French. Our results show that, in addition to regions devoted to single-word comprehension, processing of meaningful stories activates the left middle temporal gyrus, the left and right temporal poles, and a superior prefrontal area in the left frontal lobe. Among these regions, only the temporal poles remain activated whenever sentences with acceptable syntax and prosody are presented.

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Positron Emission Tomography and Neuropsychological Function

Pawlik¹,

Heiss²

1989

Critical Issues in Neuropsychology

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Cerebral glucose consumption following verbal auditory stimulation

Cited by 19 publications

References 42 publications

Contralateral White Noise Selectively Changes Right Human Auditory Cortex Activity Caused by a FM-Direction Task

Contralateral White Noise Selectively Changes Right Human Auditory Cortex Activity Caused by a FM-Direction Task

The Cortical Representation of Speech

Positron Emission Tomography and Neuropsychological Function

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