Cognitive Brain Research最新文献_第8页

Hemispheric lateralization of number comparison 数字比较的半球偏侧化

Cognitive Brain Research Pub Date : 2005-09-01 Epub Date: 2005-07-11 DOI: 10.1016/j.cogbrainres.2005.06.002

Michael Andres , Xavier Seron , Etienne Olivier

{"title":"Hemispheric lateralization of number comparison","authors":"Michael Andres , Xavier Seron , Etienne Olivier","doi":"10.1016/j.cogbrainres.2005.06.002","DOIUrl":"10.1016/j.cogbrainres.2005.06.002","url":null,"abstract":"<div><p>In order to clarify the respective contribution of the right and left posterior parietal cortex (PPC) to number comparison, transcranial magnetic stimulation (TMS) was used to disrupt PPC processing in subjects instructed to determine whether a digit was smaller or larger than 5. Single pulse TMS was applied over the PPC, either unilaterally or bilaterally, 150, 200, or 250 ms after digit presentation. Sham TMS was used as a control condition to take into account the unspecific effects of TMS on reaction time (RT). The main finding of the present study is a significant increase in RTs when comparing digits close to 5 following a disruption either of the left PPC alone or of both PPC simultaneously. The comparison of digits far from 5 was unaltered by disrupting only one PPC but RTs were found increased after bilateral PPC stimulation. These disruptive effects were observed irrespective of the TMS delay. We concluded that coding precise numerical values requires the integrity of the left PPC, as suggested by the deficit in discriminating close digits consequent to its disruption. In contrast, approximate comparisons can be processed either by the left or right PPC, since simultaneous bilateral TMS was needed to alter the comparison of digits far from 5.</p></div>","PeriodicalId":100287,"journal":{"name":"Cognitive Brain Research","volume":"25 1","pages":"Pages 283-290"},"PeriodicalIF":0.0,"publicationDate":"2005-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cogbrainres.2005.06.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25179146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 72

The orienting of visuospatial attention: An event-related brain potential study 视觉空间注意定向:事件相关脑电位研究

Cognitive Brain Research Pub Date : 2005-09-01 Epub Date: 2005-05-31 DOI: 10.1016/j.cogbrainres.2005.04.013

Durk Talsma , Heleen A. Slagter , Sander Nieuwenhuis , Jasper Hage , Albert Kok

{"title":"The orienting of visuospatial attention: An event-related brain potential study","authors":"Durk Talsma , Heleen A. Slagter , Sander Nieuwenhuis , Jasper Hage , Albert Kok","doi":"10.1016/j.cogbrainres.2005.04.013","DOIUrl":"10.1016/j.cogbrainres.2005.04.013","url":null,"abstract":"<div><p>This study investigated the electrophysiological correlates of shifting, maintaining, and relaxing the focus of attention, using a symbolic cuing task. Cues and imperative stimuli were presented in rapid succession, and the ADJAR procedure was used to remove the contribution of event-related potential (ERP) activity associated with the imperative stimulus from the cue-related ERP waveforms. Initial analyses, comparing left and right attention-directing cues, replicated previous findings of early directing attention negativity (EDAN) and anterior directing attention negativity (ADAN) effects. To isolate ERP activity that is common to leftward and rightward attention shifts, the combined ERP activity elicited by attention-directing cues was compared to the ERP activity elicited by non-informative cues. This analysis revealed a strong and broadly distributed early positivity followed by a sustained central negativity, possibly reflecting the controlled orienting and subsequent maintenance of attentional focus. Finally, imperative stimuli preceded by non-informative cues were characterized by an enhanced posterior P2 effect, with a scalp distribution indicative of generators in visual areas. This result suggests a relatively late (re)activation in visual areas associated with the processing of stimuli that had not been cued in advance.</p></div>","PeriodicalId":100287,"journal":{"name":"Cognitive Brain Research","volume":"25 1","pages":"Pages 117-129"},"PeriodicalIF":0.0,"publicationDate":"2005-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cogbrainres.2005.04.013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40939022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 88

Summation of semantic priming and complex sentence comprehension in Parkinson's disease 语义启动与帕金森病复句理解的综合

Cognitive Brain Research Pub Date : 2005-09-01 Epub Date: 2005-05-13 DOI: 10.1016/j.cogbrainres.2005.04.008

Anthony J. Angwin , Helen J. Chenery , David A. Copland , Bruce E. Murdoch , Peter A. Silburn

{"title":"Summation of semantic priming and complex sentence comprehension in Parkinson's disease","authors":"Anthony J. Angwin , Helen J. Chenery , David A. Copland , Bruce E. Murdoch , Peter A. Silburn","doi":"10.1016/j.cogbrainres.2005.04.008","DOIUrl":"10.1016/j.cogbrainres.2005.04.008","url":null,"abstract":"<div><p>Research has suggested that the integrity of semantic processing<span><span> may be compromised in Parkinson's disease (PD), which may account for difficulties in complex sentence comprehension. In order to investigate the time course and integrity of semantic activation in PD, 20 patients with PD and 23 healthy controls performed a </span>lexical decision<span> task based on the multi-priming paradigm. Semantic priming effects were measured across stimulus onset asynchronies of 250 ms, 600 ms, and 1200 ms. Further, PD participants performed an auditory comprehension task. The results revealed significantly different patterns of semantic priming for the PD group at the 250-ms and 1200-ms SOAs. In addition, a delayed time course of semantic activation was evident for PD patients with poor comprehension of complex sentences. These results provide further support to suggest that both automatic and controlled aspects of semantic activation may be compromised in PD. Furthermore, the results also suggest that some sentence comprehension deficits in PD may be related to a reduction in information processing speed.</span></span></p></div>","PeriodicalId":100287,"journal":{"name":"Cognitive Brain Research","volume":"25 1","pages":"Pages 78-89"},"PeriodicalIF":0.0,"publicationDate":"2005-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cogbrainres.2005.04.008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25111121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 59

Maturation of medial temporal lobe response and connectivity during memory encoding 记忆编码过程中内侧颞叶反应和连通性的成熟

Cognitive Brain Research Pub Date : 2005-09-01 Epub Date: 2005-08-24 DOI: 10.1016/j.cogbrainres.2005.07.007

V. Menon , J.M. Boyett-Anderson , A.L. Reiss

引用次数: 132

Intelligence and neural efficiency: Further evidence of the influence of task content and sex on the brain–IQ relationship 智力和神经效率:任务内容和性别对大脑-智商关系影响的进一步证据

Cognitive Brain Research Pub Date : 2005-09-01 Epub Date: 2005-07-18 DOI: 10.1016/j.cogbrainres.2005.05.011

Aljoscha C. Neubauer, Roland H. Grabner, Andreas Fink, Christa Neuper

{"title":"Intelligence and neural efficiency: Further evidence of the influence of task content and sex on the brain–IQ relationship","authors":"Aljoscha C. Neubauer, Roland H. Grabner, Andreas Fink, Christa Neuper","doi":"10.1016/j.cogbrainres.2005.05.011","DOIUrl":"10.1016/j.cogbrainres.2005.05.011","url":null,"abstract":"<div><p>In the field of physiological study of human intelligence, strong evidence of a more efficient operation (i.e., less activation) of the brain in brighter individuals (the <em>neural efficiency</em> hypothesis) can be found. Most studies in this field have used single, homogeneous tasks and have not examined sex differences. In analyzing the extent of Event-related Desynchronization (ERD) in the EEG during the performance of a verbal and a visuo-spatial task, we recently found that males and females display <em>neural efficiency</em> primarily in the domain where they usually perform better (i.e., verbal in females and spatial in males; cf. A.C. Neubauer, A. Fink, D.G. Schrausser, Intelligence and neural efficiency: the influence of task content and sex on brain–IQ relationship. Intelligence, 30 (2002) 515–536). However, this interpretation was complicated by differences in the complexity of the two tasks. By using a verbal (semantic) and a spatial (rotation) task of comparable complexity in this research, we sought to replicate and extend our earlier findings by additionally considering the individual differences in intelligence structure and the topographical distribution over the cortex. Findings were similar to the previous study: Females (<em>n</em> = 35) display <em>neural efficiency</em> (i.e., less brain activation in brighter individuals) primarily during the verbal task, males (<em>n</em> = 31) in the spatial task. However, the strength of this brain activation–IQ relationship varies with the intelligence factor: In males, the highest correlations were observed for spatial IQ, in females for verbal IQ. Furthermore, the sexes displayed topographical differences of <em>neural efficiency</em> patterns.</p></div>","PeriodicalId":100287,"journal":{"name":"Cognitive Brain Research","volume":"25 1","pages":"Pages 217-225"},"PeriodicalIF":0.0,"publicationDate":"2005-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cogbrainres.2005.05.011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25196982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 160

Effects of mental fatigue on attention: An ERP study 心理疲劳对注意力的影响:一项ERP研究

Cognitive Brain Research Pub Date : 2005-09-01 Epub Date: 2005-05-23 DOI: 10.1016/j.cogbrainres.2005.04.011

Maarten A.S. Boksem, Theo F. Meijman, Monicque M. Lorist

{"title":"Effects of mental fatigue on attention: An ERP study","authors":"Maarten A.S. Boksem, Theo F. Meijman, Monicque M. Lorist","doi":"10.1016/j.cogbrainres.2005.04.011","DOIUrl":"10.1016/j.cogbrainres.2005.04.011","url":null,"abstract":"<div><p>The effects of mental fatigue on attention were assessed. Subjects performed a visual attention task for 3 h without rest. Subjective levels of fatigue, performance measures and EEG were recorded. Subjective fatigue ratings, as well as theta and lower-alpha EEG band power increased, suggesting that the 3 h of task performance resulted in an increase in fatigue. Reaction times, misses and false alarms increased with time on task, indicating decreased performance efficiency in fatigued subjects. Subjects were unable to inhibit automatic shifting of attention to irrelevant stimuli, reflected by a larger negativity in the N1 latency range for irrelevant, compared to relevant stimuli. This difference in negativity was unaffected by time on task. However, N1 and N2b amplitude did change with time on task: N1 amplitude decreased, and the difference in N2b amplitude between relevant and irrelevant stimuli (larger N2b amplitude evoked by relevant stimuli) decreased with time on task. The results indicate a dissociation in the effects of mental fatigue on goal-directed (top–down) and stimulus-driven (bottom–up) attention: mental fatigue results in a reduction in goal-directed attention, leaving subjects performing in a more stimulus-driven fashion.</p></div>","PeriodicalId":100287,"journal":{"name":"Cognitive Brain Research","volume":"25 1","pages":"Pages 107-116"},"PeriodicalIF":0.0,"publicationDate":"2005-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cogbrainres.2005.04.011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40928614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 835

The time course of off-line motor sequence learning 离线运动序列学习的时间过程

Cognitive Brain Research Pub Date : 2005-09-01 Epub Date: 2005-06-28 DOI: 10.1016/j.cogbrainres.2005.05.010

Daniel Z. Press , Melynda D. Casement , Alvaro Pascual-Leone , Edwin M. Robertson

引用次数: 108

Letter processing interferes with inhibition of return: Evidence for cortical involvement 字母处理干扰返回抑制:皮层参与的证据

Cognitive Brain Research Pub Date : 2005-09-01 Epub Date: 2005-05-13 DOI: 10.1016/j.cogbrainres.2005.04.005

Ben Bowles, Susanne Ferber, Jay Pratt

{"title":"Letter processing interferes with inhibition of return: Evidence for cortical involvement","authors":"Ben Bowles, Susanne Ferber, Jay Pratt","doi":"10.1016/j.cogbrainres.2005.04.005","DOIUrl":"10.1016/j.cogbrainres.2005.04.005","url":null,"abstract":"<div><p><span>Inhibition of return (IOR) refers to the finding that, when the time lag between a cue and a target is prolonged, the reaction to the target, when it eventually appears, is actually slower than with no cue. This phenomenon is thought to make visual search more efficient, and it is subserved by the left inferior parietal cortex and the </span>supramarginal gyrus bilaterally. Interestingly, the very same brain structures are also involved in letter processing. Accordingly, we asked whether the two mental processes interfere with each other when simultaneously probed. The first experiment used a typical IOR procedure, but the cue/target placeholders were either simple geometric shapes or English letters. The results show that, although IOR is approximately the same across visual fields when shape placeholders are used, it is significantly lessened in the right visual field when letters are used as cue and target placeholders. To examine if this finding was due to potential spatial frequency differences between the placeholders, a second experiment using shapes and Japanese letters was conducted, and no differences in IOR were found. The supramarginal gyrus appears to be the most likely locus for the letter-IOR interference effect because it is active bilaterally in IOR, but only in the left hemisphere during letter processing. These findings provide support for the notion that IOR is not simply due to subcortical processes but also involves processing from cortical structures.</p></div>","PeriodicalId":100287,"journal":{"name":"Cognitive Brain Research","volume":"25 1","pages":"Pages 1-7"},"PeriodicalIF":0.0,"publicationDate":"2005-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cogbrainres.2005.04.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25111120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Late interaction of syntactic and prosodic processes in sentence comprehension as revealed by ERPs erp揭示句子理解中句法和韵律过程的后期相互作用

Cognitive Brain Research Pub Date : 2005-09-01 Epub Date: 2005-06-20 DOI: 10.1016/j.cogbrainres.2005.05.003

Korinna Eckstein, Angela D. Friederici

{"title":"Late interaction of syntactic and prosodic processes in sentence comprehension as revealed by ERPs","authors":"Korinna Eckstein, Angela D. Friederici","doi":"10.1016/j.cogbrainres.2005.05.003","DOIUrl":"10.1016/j.cogbrainres.2005.05.003","url":null,"abstract":"<div><p>The present study was designed to examine the processing of prosodic and syntactic information in spoken language. The aim was to investigate the long discussed relationship between prosody and syntax in online speech comprehension to reveal direct evidence about whether the two information types are interactive or independent from each other. The method of event-related potentials allowed us to sheet light on the precise time course of this relationship. Our experimental manipulation involved two prosodically different positions in German sentences, i.e., the critical noun in penultimate vs. final position. In syntactically correct sentences, a prosodic manipulation of the penultimate word gave rise to a late centroparietal negativity that resembled the classical N400 component. We interpreted the negativity as a correlate of lexical integration costs for the prosodically unexpected sentence-final word. Comparisons with syntactically incorrect sentences revealed that this effect was dependent on the sentences' grammatical correctness. When the prosodic manipulation was realized at the final word, we observed a right anterior negativity followed by a late positivity (P600). The right anterior negativity was present independent of the sentences' grammatical correctness. However, the P600 was not, as a late positivity was present for straightforward prosodic and syntactic violations but increased for the combined violations. This suggests that the right anterior negativity, and not the P600, should be considered as a pure prosodic effect. The combined data moreover suggest an interaction between prosody and syntax in a later time window during sentence comprehension.</p></div>","PeriodicalId":100287,"journal":{"name":"Cognitive Brain Research","volume":"25 1","pages":"Pages 130-143"},"PeriodicalIF":0.0,"publicationDate":"2005-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cogbrainres.2005.05.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24855516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 76

Modifications in avoidance reactions of mice, on a second exposure to the hot plate, resist to various amnesia-inducing treatments 小鼠回避反应的改变，在第二次暴露于热板上，抵抗各种诱导失忆症的治疗

Cognitive Brain Research Pub Date : 2005-09-01 Epub Date: 2005-07-26 DOI: 10.1016/j.cogbrainres.2005.06.007

Charles Suaudeau , Jean-Claude do-Rego , Jean Costentin

引用次数: 9