Lateralization of phonetic and pitch discrimination in speech processing

Zatorre, Robert J.; Evans, Alan C.; Meyer, Ernst; Gjedde, Albert

doi:10.1126/science.1589767

Cited by 1,348 publications

(772 citation statements)

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“…The temporal activation (superior temporal region; STR) is in line with previous fMRI results on spoken words (e.g., Binder et al, 2000) and sentence comprehension (e.g., Dehaene et al, 1997;Friederici, Meyer, & von Cramon, 2000;Meyer et al, 2002;Meyer, Friederici, & von Cramon, 2000) as well as studies on the perceptual analysis of speech signals (Hickok & Poeppel, 2000;Zatorre, Evans, Meyer, & Gjedde, 1992). Activation of the STR was extremely reduced for prosodic speech.…”

Section: Temporal Activationsupporting

confidence: 88%

On the lateralization of emotional prosody: An event-related functional MR investigation

et al. 2003

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In order to investigate the lateralization of emotional speech we recorded the brain responses to three emotional intonations in two conditions, i.e., ''normal'' speech and ''prosodic'' speech (i.e., speech with no linguistic meaning, but retaining the Ôslow prosodic modulationsÕ of speech). Participants listened to semantically neutral sentences spoken with a positive, neutral, or negative intonation in both conditions and judged how positive, negative, or neutral the intonation was on a five-point scale. Core peri-sylvian language areas, as well as some frontal and subcortical areas were activated bilaterally in the normal speech condition. In contrast, a bilateral fronto-opercular region was active when participants listened to prosodic speech. Positive and negative intonations elicited a bilateral fronto-temporal and subcortical pattern in the normal speech condition, and more frontal activation in the prosodic speech condition. The current results call into question an exclusive right hemisphere lateralization of emotional prosody and expand patient data on the functional role of the basal ganglia during the perception of emotional prosody.

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Section: Temporal Activationsupporting

confidence: 88%

On the lateralization of emotional prosody: An event-related functional MR investigation

et al. 2003

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“…showed that the perceptual analysis of normal speech signals is subserved by the temporal lobes [Zatorre et al, 1992]. A similar explanation is given by Hickok and Poeppel [2000], who also argue that the soundbased representation of speech is located in the posterior-superior temporal region bilaterally.…”

Section: Figuresupporting

confidence: 57%

“…Furthermore we predict to find decreased responses to prosodic speech in the auditory cortex bilaterally because the total amount of auditory information contained in prosodic speech is clearly reduced relative to normal and syntactic speech. According to recent PET-studies on pitch perception [Gandour et al, 2000;Zatorre et al, 1992Zatorre et al, , 1994] a bilateral engagement of the inferior frontal cortex is also likely. The data at hand, however, allow no clear prediction with respect to the lateralization of the frontal activation: although processing pitch variations in a grammatically relevant context was shown to occur in the left fronto-opercular cortex [Gandour et al, 2000], pitch processing of complex auditory stimuli in a nonlinguistic context rather revealed either right dorsolateral activation [Zatorre et al, 1992] or bilateral contributions of the frontal operculum [Zatorre et al, 1994].…”

Section: Present Studymentioning

confidence: 99%

FMRI reveals brain regions mediating slow prosodic modulations in spoken sentences

Meyer

Alter

Friederici

et al. 2002

Human Brain Mapping

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By means of fMRI measurements, the present study identifies brain regions in left and right peri-sylvian areas that subserve grammatical or prosodic processing. Normal volunteers heard 1) normal sentences; 2) so-called syntactic sentences comprising syntactic, but no lexical-semantic information; and 3) manipulated speech signals comprising only prosodic information, i.e., speech melody. For all conditions, significant blood oxygenation signals were recorded from the supratemporal plane bilaterally. Left hemisphere areas that surround Heschl gyrus responded more strongly during the two sentence conditions than to speech melody. This finding suggests that the anterior and posterior portions of the superior temporal region (STR) support lexical-semantic and syntactic aspects of sentence processing. In contrast, the right superior temporal region, in especially the planum temporale, responded more strongly to speech melody. Significant brain activation in the fronto-opercular cortices was observed when participants heard pseudo sentences and was strongest during the speech melody condition. In contrast, the fronto-opercular area is not prominently involved in listening to normal sentences. Thus, the functional activation in fronto-opercular regions increases as the grammatical information available in the sentence decreases. Generally, brain responses to speech melody were stronger in right than left hemisphere sites, suggesting a particular role of right cortical areas in the processing of slow prosodic modulations. Hum. Brain Mapping 17:73-88, 2002.

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“…Stimuli based on fundamental frequency (F0) have generally been found to show right-hemisphere lateralization (e.g., Blumstein and Cooper, 1974, for intonation contours; Goodglass and Calderon, 1977, for musical notes; Mazzucchi et al, 1981, for synthesized tones). For example, prefrontal cortex in the right hemisphere has been linked to pitch judgment tasks (Zatorre et al, 1992) and music processing (Pugh et al, 1996a,b). Consequently, the right hemisphere, especially the right inferior frontal gyrus, can play a significant role in tone production.…”

Section: Discussionmentioning

confidence: 99%