Hemisphere differences in lexical decision and in semantic priming effect : an attempt to expand our understanding of the right hemisphere ability in processing the Chinese language

1987 ◽  
Author(s):  
Sai-Keung Ho
2016 ◽  
Vol 10 (2) ◽  
pp. 91-97
Author(s):  
Candice Steffen Holderbaum ◽  
Letícia Lessa Mansur ◽  
Jerusa Fumagalli de Salles

ABSTRACT Investigations on the semantic priming effect (SPE) in patients after left hemisphere (LH) lesions have shown disparities that may be explained by the variability in performance found among patients. The aim of the present study was to verify the existence of subgroups of patients after LH stroke by searching for dissociations between performance on the lexical decision task based on the semantic priming paradigm and performance on direct memory, semantic association and language tasks. All 17 patients with LH lesions after stroke (ten non-fluent aphasics and seven non aphasics) were analyzed individually. Results indicated the presence of three groups of patients according to SPE: one exhibiting SPE at both stimulus onset asynchronies (SOAs), one with SPE only at long SOA, and another, larger group with no SPE.


2003 ◽  
Vol 96 (1) ◽  
pp. 33-42 ◽  
Author(s):  
Keiko Nakamoto

Camac and Glucksberg reported there was no priming effect between constituent terms of a metaphor and argued that there was no prior similarity or association between the constituents. However, their study had several limitations. An important one was that they neglected the asymmetry of metaphor constituent terms. The purpose of this study is to replicate their experiment under the condition in which one of the constituents preceded the other. The experiment was conducted with Japanese participants using Japanese metaphoric sentences as stimuli. The results showed that the decision was facilitated if the vehicle served as prime and the topic served as target. In contrast, if the topic preceded the vehicle, no priming effect was found. These results are discussed in terms of the class inclusion model proposed earlier by Glucksberg and Keysar.


2013 ◽  
Vol 7 (2) ◽  
pp. 155-163
Author(s):  
Juliana de Lima Müller ◽  
Jerusa Fumagalli de Salles

ABSTRACT The role of the right cerebral hemisphere (RH) associated with semantic priming effects (SPEs) must be better understood, since the consequences of RH damage on SPE are not yet well established. Objective: The aim of this article was to investigate studies analyzing SPEs in patients affected by stroke in the RH through a systematic review, verifying whether there are deficits in SPEs, and whether performance varies depending on the type of semantic processing evaluated or stimulus in the task. Methods: A search was conducted on the LILACS, PUBMED and PSYCINFO databases. Results: Out of the initial 27 studies identified, 11 remained in the review. Difficulties in SPEs were shown in five studies. Performance does not seem to vary depending on the type of processing, but on the type of stimulus used. Conclusion: This ability should be evaluated in individuals that have suffered a stroke in the RH in order to provide treatments that will contribute to their recovery.


2005 ◽  
Vol 17 (3) ◽  
pp. 494-506 ◽  
Author(s):  
Seana Coulson ◽  
Ying Choon Wu

Two studies tested the hypothesis that the right hemisphere engages in relatively coarse semantic coding that aids high-level language tasks such as joke comprehension. Scalp-recorded event-related brain potentials (ERPs) were collected as healthy adults read probe words (CRAZY) preceded either by jokes or nonfunny controls (“Everyone had so much fun jumping into the swimming pool, we decided to put in a littlewater/platform”). Probes were related to the meaning of the jokes, but not the controls. In Experiment 1a, with central presentation, probes following jokes (related) elicited less negative ERPs 300–700 msec postonset (N400) than did probes following nonfunny controls (unrelated). This finding suggests related probes were primed by the jokes. In addition, unrelated probes elicited a larger anterior positivity 700– 900 msec than did related, as irrelevant stimuli impacted control processes invoked by task demands. In Experiment 1b, probes (CRAZY) were preceded only by sentence-final words from jokes (water) or controls (platform). No ERP effects were observed in Experiment 1b, suggesting the N400 priming effect and the anterior positivity observed in Experiment 1a reflect semantic activations at the discourse level. To assess hemispheric differences in semantic activations, in Experiment 2, ERPs were recorded as participants read probe words presented in their left and right visual fields (LVF and RVF, respectively). Probes elicited a smaller N400 component when preceded by jokes than controls. This N400 priming effect was larger with presentation to the LVF, suggesting joke-relevant information was more active in the right hemisphere. The anterior positivity was observed with RVF but not LVF presentation, suggesting an important role for the left hemisphere in controlled retrieval in language comprehension.


Author(s):  
Marie Dekerle ◽  
Véronique Boulenger ◽  
Michel Hoen ◽  
Fanny Meunier

1998 ◽  
Vol 172 (2) ◽  
pp. 142-146 ◽  
Author(s):  
Matthias Weisbrod ◽  
Sabine Maier ◽  
Sabine Harig ◽  
Ulrike Himmelsbach ◽  
Manfred Spitzer

BackgroundIn schizophrenia, disturbances in the development of physiological hemisphere asymmetry are assumed to play a pathogenetic role. The most striking difference between hemispheres is in language processing. The left hemisphere is superior in the use of syntactic or semantic information, whereas the right hemisphere uses contextual information more effectively.MethodUsing psycholinguistic experimental techniques, semantic associations were examined in 38 control subjects, 24 non-thought-disordered and 16 thought-disordered people with schizophrenia, for both hemispheres separately.ResultsDirect semantic priming did not differ between the hemispheres in any of the groups. Only thought-disordered people showed significant indirect semantic priming in the left hemisphere.ConclusionsThe results support: (a) a prominent role of the right hemisphere for remote associations; (b) enhanced spreading of semantic associations in thought-disordered subjects; and (c) disorganisation of the functional asymmetry of semantic processing in thought-disordered subjects.


1995 ◽  
Vol 6 (3) ◽  
pp. 157-164 ◽  
Author(s):  
Janet Metcalfe ◽  
Margaret Funnell ◽  
Michael S. Gazzaniga

Six experiments explored hemispheric memory differences in a patient who had undergone complete corpus callosum resection The right hemisphere was better able than the left to reject new events similar to originally presented materials of several types, including abstract visual forms, faces, and categorized lists of words Although the left hemisphere is capable of mental manipulation, imagination, semantic priming, and complex language production, these functions are apparently linked to memory confusions—confusions less apparent in the more literal right hemisphere Differences between the left and right hemispheres in memory for new schematically consistent or categorically related events may provide a source of information allowing people to distinguish between what they actually witnessed and what they only inferred


Author(s):  
Phoebe Gaston ◽  
Linnaea Stockall ◽  
Sarah VanWagenen ◽  
Alec Marantz

Psycholinguistic research on the processing of morphologically complex words has largely focused on debates about how/if lexical stems are recognized, stored and retrieved. Comparatively little processing research has investigated similar issues for functional affixes. In Word or Lexeme Based Morphology (Aronoff, 1994), affixes are not representational units on par with stems or roots. This view is in stark contrast to the claims of linguistic theories like Distributed Morphology (Halle & Marantz, 1993), which assign rich representational content to affixes. We conducted a series of eight visual lexical decision studies, evaluating effects of derivational affix priming along with stem priming, identity priming, form priming and semantic priming at long and short lags. We find robust and consistent affix priming (but not semantic or form priming) with lags up to 33 items, supporting the position that affixes are morphemes, i.e., representational units on par with stems. Intriguingly, we find only weaker evidence for the long-lag stem priming effect found in other studies. We interpret this asymmetry in terms of the salience of different morphological contexts for recollection memory.


2021 ◽  
Author(s):  
Erin Michelle Buchanan ◽  
Kelly Cuccolo ◽  
Nicholas Alvaro Coles ◽  
Aishwarya Iyer ◽  
Neil Anthony Lewis ◽  
...  

Semantic priming has been studied for nearly 50 years across various experimental manipulations and theoretical frameworks. These studies provide evidence of cognitive underpinnings of the structure and organization of semantic representation in both healthy and clinical populations. In this registered report, we propose to create a large database of semantic priming values, alleviating the sample size and limited language issues with previous studies in this area. Consequently, this database will include semantic priming data across multiple languages using an adaptive sampling procedure. This study will test the size of semantic priming effect and its variability across languages. Results will support semantic priming when reduced response latencies are found for related word-pair conditions in comparison to unrelated word-pair conditions. Differences in semantic priming across languages will be supported when priming effect confidence intervals do not overlap.


2020 ◽  
Vol 10 (3) ◽  
pp. 57 ◽  
Author(s):  
Valeria Guglielmi ◽  
Davide Quaranta ◽  
Ilaria Mega ◽  
Emanuele Maria Costantini ◽  
Claudia Carrarini ◽  
...  

Introduction: Semantic memory is impaired in mild cognitive impairment (MCI). Two main hypotheses about this finding are debated and refer to the degradation of stored knowledge versus the impairment of semantic access mechanisms. The aim of our study is to evaluate semantic impairment in MCI versus healthy subjects (HS) by an experiment evaluating semantic priming. Methods: We enrolled 27 MCI and 20 HS. MCI group were divided, according to follow up, into converters-MCI and non converters-MCI. The semantic task consisted of 108 pairs of words, 54 of which were semantically associated. Stimuli were presented 250 or 900 ms later the appearance of the target in a randomized manner. Data were analyzed using factorial ANOVA. Results: Both HS and MCI answered more quickly for word than for non-word at both stimulus onset asynchrony (SOA) intervals. At 250 ms, both MCI and HS experienced a shorter time of response for related-word than for unrelated words (priming effect), while only the converters-MCI subgroup lost the priming effect. Further, we observed a rather larger Cohen’s d effect size in non converters-MCI than in converters-MCI. Conclusion: Our data, and in particular the absence of a semantic priming effect in converters-MCI, could reflect the impairment of semantic knowledge rather than the accessibility of semantic stores in MCI individuals that progress to dementia.


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