Top–down and bottom–up processes in speech comprehension

Zekveld, Adriana A.; Heslenfeld, Dirk J.; Festen, Joost Μ.; Schoonhoven, Ruurd

doi:10.1016/j.neuroimage.2006.04.199

Cited by 176 publications

(157 citation statements)

References 42 publications

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“…Compared to noise alone, speech in noise and speech in quiet together evoked statistically significant activity in the STG bilaterally and in the left MTG (see Figure 5a). This has been observed in other studies as well (e.g., Binder et al, 2004;Davis & Johnsrude, 2003;Obleser et al, 2007;Zekveld et al, 2006). Figure 5a.…”

Section: Fmri Resultssupporting

confidence: 88%

Behavioral and fMRI evidence that cognitive ability modulates the effect of semantic context on speech intelligibility

Zekveld¹,

Rudner²,

Johnsrude³

et al. 2012

Brain and Language

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101

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Text cues facilitate sentence perception when they are semantically related to the speech (Zekveld et al., 2011a). In this study, semantically related and unrelated cues preceding sentences evoked more activation in middle temporal gyrus (MTG) and inferior frontal gyrus (IFG) than non-word cues, regardless of acoustic quality (speech in noise or speech in quiet).Larger verbal working memory (WM) capacity (reading span) was associated with greater intelligibility benefit obtained from related cues, with less speech-related activation in the left superior temporal gyrus and left anterior IFG, and with more activation in right medial frontal cortex for related versus unrelated cues. Better ability to comprehend masked text was associated with greater ability to disregard unrelated cues, and with more activation in left angular gyrus (AG). We conclude that individual differences in cognitive abilities are related to activation in a speech-sensitive network including left MTG, IFG and AG during cued speech perception.

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Section: Fmri Resultssupporting

confidence: 88%

Behavioral and fMRI evidence that cognitive ability modulates the effect of semantic context on speech intelligibility

Zekveld¹,

Rudner²,

Johnsrude³

et al. 2012

Brain and Language

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101

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“…The disparity between the activation patterns obtained in the posterior FUS and in the anterior and middle FUS supports a functional distinction between the different parts of the structure, with the posterior part being involved in low-level visual or sublexical process and the middle and anterior parts in lexico-semantic process (Ludersdorfer et al, 2015;Price and Mechelli, 2005;Vinckier et al, 2007). Finally, the dissociation between the activation patterns observed in phonological areas located in the prefrontal cortex (IFG oper) and the temporal cortex (STG) corroborates some previous studies on spoken language processing showing differences in the sensitivity to top-down vs. bottom-up process in these two regions (Davis et al, 2011;Zekveld et al, 2006). Thus, the conclusion obtained in the studies using auditory stimuli remains valid even when the activation of the auditory system is elicited by visual input.…”

Section: Task-driven Activation Of Orthographic Phonological and Semsupporting

confidence: 86%

Automaticity of phonological and semantic processing during visual word recognition

Pattamadilok

Chanoine²,

Pallier

et al. 2017

NeuroImage

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A B S T R A C TReading involves activation of phonological and semantic knowledge. Yet, the automaticity of the activation of these representations remains subject to debate. The present study addressed this issue by examining how different brain areas involved in language processing responded to a manipulation of bottom-up (level of visibility) and top-down information (task demands) applied to written words. The analyses showed that the same brain areas were activated in response to written words whether the task was symbol detection, rime detection, or semantic judgment. This network included posterior, temporal and prefrontal regions, which clearly suggests the involvement of orthographic, semantic and phonological/articulatory processing in all tasks. However, we also found interactions between task and stimulus visibility, which reflected the fact that the strength of the neural responses to written words in several high-level language areas varied across tasks. Together, our findings suggest that the involvement of phonological and semantic processing in reading is supported by two complementary mechanisms. First, an automatic mechanism that results from a taskindependent spread of activation throughout a network in which orthography is linked to phonology and semantics. Second, a mechanism that further fine-tunes the sensitivity of high-level language areas to the sensory input in a task-dependent manner.

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“…The sentences were taken from the speech reception threshold corpus or SRT [Plomp and Mimpen, 1979]. This corpus has been widely used for assessing intelligibility of different types of stimuli, for example, for speech in noise [Zekveld et al, 2006] or foreign-accented speech [van Wijngaarden et al, 2002]. The SRT consists of 130 sentences designed to resemble short samples of conversational speech.…”

Section: Stimulus Materialsmentioning

confidence: 99%

“…The question arises whether phonological and phonetic variation in speech is processed in the same way as speech stimuli that have been distorted or degraded, for instance, by presenting sentences at a lower signal-to-noise ratio [Zekveld et al, 2006] or by noise-vocoding [Obleser et al, 2007]. Relatively few studies investigate the specific effect of different types of distortion of the speech signal and identified areas that are involved more when the intelligibility decreases.…”

Section: Speaker and Accent Normalizationmentioning

confidence: 99%

The role of planum temporale in processing accent variation in spoken language comprehension

Adank

Noordzij

Hagoort

2011

Human Brain Mapping

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A repetition-suppression functional magnetic resonance imaging paradigm was used to explore the neuroanatomical substrates of processing two types of acoustic variation-speaker and accent-during spoken sentence comprehension. Recordings were made for two speakers and two accents: Standard Dutch and a novel accent of Dutch. Each speaker produced sentences in both accents. Participants listened to two sentences presented in quick succession while their haemodynamic responses were recorded in an MR scanner. The first sentence was spoken in Standard Dutch; the second was spoken by the same or a different speaker and produced in Standard Dutch or in the artificial accent. This design made it possible to identify neural responses to a switch in speaker and accent independently. A switch in accent was associated with activations in predominantly left-lateralized areas including posterior temporal regions, including superior temporal gyrus, planum temporale (PT), and supramarginal gyrus, as well as in frontal regions, including left pars opercularis of the inferior frontal gyrus (IFG). A switch in speaker recruited a predominantly right-lateralized network, including middle frontal gyrus and prenuneus. It is concluded that posterior temporal areas, including PT, and frontal areas, including IFG, are involved in processing accent variation in spoken sentence comprehension. Hum Brain Mapp 00:000-000,

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Top–down and bottom–up processes in speech comprehension

Cited by 176 publications

References 42 publications

Behavioral and fMRI evidence that cognitive ability modulates the effect of semantic context on speech intelligibility

Behavioral and fMRI evidence that cognitive ability modulates the effect of semantic context on speech intelligibility

Automaticity of phonological and semantic processing during visual word recognition

The role of planum temporale in processing accent variation in spoken language comprehension

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