scholarly journals Neural correlates of language aptitude during a lexical semantic categorization task

Author(s):  
Olga Kepinska ◽  
Esli Struys
2006 ◽  
Author(s):  
Penny M. Pexman ◽  
Jodi D. Edwards ◽  
Ian S. Hargreaves ◽  
Luke C. Henry ◽  
Bradley Goodyear

2011 ◽  
Vol 3 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Michele Wellsby ◽  
Paul D. Siakaluk ◽  
William J. Owen ◽  
Penny M. Pexman

AbstractBody-object interaction (BOI) measures people's perceptions of the ease with which a human body can physically interact with a word's referent. Facilitatory BOI effects, involving faster responses for high BOI words, have been reported in a number of visual word recognition tasks using button press responses. Since BOI effects have only been observed in button-press tasks, it is possible that the effects may be due to priming by high BOI words of the motor system, rather than activation of stored motor information in the lexical semantic system. If this hypothesis is correct, BOI effects should not be observed in tasks using verbal responses. We tested this hypothesis in three versions of a go/no-go semantic categorization task: one version required button press responses, whereas the other two versions required verbal responses. Contrary to the motor priming hypothesis, we observed facilitatory BOI effects in all three versions of the semantic categorization task. These results support the inference that stored motor information is indeed an important component of the lexical semantic system.


2018 ◽  
Vol 29 (4) ◽  
pp. 614-622 ◽  
Author(s):  
Martin Freundlieb ◽  
Ágnes M. Kovács ◽  
Natalie Sebanz

Recent studies have demonstrated people’s propensity to adopt others’ visuospatial perspectives (VSPs) in a shared physical context. The present study investigated whether spontaneous VSP taking occurs in mental space where another person’s perspective matters for mental activities rather than physical actions. Participants sat at a 90° angle to a confederate and performed a semantic categorization task on written words. From the participants’ point of view, words were always displayed vertically, while for the confederate, these words appeared either the right way up or upside down, depending on the confederate’s sitting position. Participants took longer to categorize words that were upside down for the confederate, suggesting that they adopted the confederate’s VSP without being prompted to do so. Importantly, the effect disappeared if the other’s visual access was impeded by opaque goggles. This demonstrates that human adults show a spontaneous sensitivity to others’ VSP in the context of mental activities, such as joint reading.


2002 ◽  
Vol 5 (3) ◽  
pp. 241-251 ◽  
Author(s):  
Roswitha E. von Studnitz ◽  
David W. Green

German-English bilinguals decided whether a visually presented word, either German or English, referred to an animate or to an inanimate entity. Bilinguals were slower to respond on a language switch trial than on language non-switch trials but only if they had to make the same response as on the prior trial (e.g., two successive “animate” responses). If they had to change their response from the prior trial, a switch of language speeded responses. This interaction between language switching and response type was abolished for the translations of words previously presented. We consider the implications for theories of language control.


2021 ◽  
Vol 64 (9) ◽  
pp. 3697-3706
Author(s):  
Dhatri S. Devaraju ◽  
Amy Kemp ◽  
David A. Eddins ◽  
Rahul Shrivastav ◽  
Bharath Chandrasekaran ◽  
...  

Purpose Listeners shift their listening strategies between lower level acoustic information and higher level semantic information to prioritize maximum speech intelligibility in challenging listening conditions. Although increasing task demands via acoustic degradation modulates lexical-semantic processing, the neural mechanisms underlying different listening strategies are unclear. The current study examined the extent to which encoding of lower level acoustic cues is modulated by task demand and associations with lexical-semantic processes. Method Electroencephalography was acquired while participants listened to sentences in the presence of four-talker babble that contained either higher or lower probability final words. Task difficulty was modulated by time available to process responses. Cortical tracking of speech—neural correlates of acoustic temporal envelope processing—were estimated using temporal response functions. Results Task difficulty did not affect cortical tracking of temporal envelope of speech under challenging listening conditions. Neural indices of lexical-semantic processing (N400 amplitudes) were larger with increased task difficulty. No correlations were observed between the cortical tracking of temporal envelope of speech and lexical-semantic processes, even after controlling for the effect of individualized signal-to-noise ratios. Conclusions Cortical tracking of the temporal envelope of speech and semantic processing are differentially influenced by task difficulty. While increased task demands modulated higher level semantic processing, cortical tracking of the temporal envelope of speech may be influenced by task difficulty primarily when the demand is manipulated in terms of acoustic properties of the stimulus, consistent with an emerging perspective in speech perception.


Perception ◽  
1978 ◽  
Vol 7 (6) ◽  
pp. 695-705 ◽  
Author(s):  
Elizabeth K Warrington ◽  
Angela M Taylor

Visual object recognition was investigated in a group of eighty-one patients with right- or left-hemisphere lesions. Two tasks were used, one maximizing perceptual categorization by physical identity, the other maximizing semantic categorization by functional identity. The right-hemisphere group showed impairment on the perceptual categorization task and the left-hemisphere group were impaired on the semantic categorization task. The findings are discussed in terms of categorical stages of object recognition. A tentative model of their cerebral organization is suggested.


1999 ◽  
Vol 99 (1-4) ◽  
pp. 49-58 ◽  
Author(s):  
Kenneth Hugdahl ◽  
Arvid Lundervold ◽  
Lars Ersland ◽  
Alf Inge Smievoll ◽  
Håkan Sundbekg ◽  
...  

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