scholarly journals The Implicit Relational Assessment Procedure (Irap) As a Response-Time and Event-Related-Potentials Methodology for Testing Natural Verbal Relations: A Preliminary Study

2008 ◽  
Vol 58 (4) ◽  
pp. 497-516 ◽  
Author(s):  
Dermot Barnes-Holmes ◽  
Eilish Hayden ◽  
Yvonne Barnes-Holmes ◽  
Ian Stewart
Keyword(s):  
Response Time ◽  
Event Related Potentials ◽  
Implicit Relational Assessment Procedure ◽  
Assessment Procedure ◽  
Related Potentials ◽  
Preliminary Study ◽  
Verbal Relations

scholarly journals Mental rotation of sequentially presented 3D figures: sex and sex hormones related differences in behavioural and ERP measures

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ramune Griksiene ◽  
Aurina Arnatkeviciute ◽  
Rasa Monciunskaite ◽  
Thomas Koenig ◽  
Osvaldas Ruksenas
Keyword(s):  
Response Time ◽  
Mental Rotation ◽  
Sex Hormones ◽  
Brain Activity ◽  
Event Related Potentials ◽  
Global Field Power ◽  
Angular Disparity ◽  
3D Objects ◽  
Performance Accuracy ◽  
Related Potentials

AbstractMental rotation of 3D objects demonstrates one of the largest sex differences. We investigated sex and sex hormones-related differences in behaviour and event related potentials (ERP) using a modified Shepard and Metzler task composed of sequentially presented 3D figures in 29 men and 32 women. We demonstrated a significant increase in response time and decrease in both accuracy and positivity of the parietal ERP with increasing angular disparity between the figures. Higher angular disparity evoked an increase of global field power (GFP) from 270 to 460 ms and different activation topographies from 470 to 583 ms with lower parietal, but higher left frontal positivity. Flatter slopes in higher angular disparity condition suggest distinct strategies being implemented depending on the difficulty of the rotation. Men performed the task more accurately than women. Performance accuracy in women tended to be negatively related to estradiol while the response time tended to increase with increasing progesterone. There were no associations with testosterone. Women demonstrated higher GFP and an increased positivity over the parietal scalp area, while men showed higher activation in the left frontal cortex. Together these findings indicate dynamic angular disparity- and sex-related differences in brain activity during mental rotation of 3D figures.

The N400 component of event-related potentials in schizophrenic patients: a preliminary study

1991 ◽  
Vol 78 (2) ◽  
pp. 124-132 ◽  
Author(s):  
Sachiko Koyama ◽  
Yasuhiro Nageishi ◽  
Minoru Shimokochi ◽  
Hiroto Hokama ◽  
Yoshikazu Miyazato ◽  
...  
Keyword(s):  
Event Related Potentials ◽  
Schizophrenic Patients ◽  
Related Potentials ◽  
N400 Component ◽  
Preliminary Study

Response-time corrected averaging of event-related potentials

2007 ◽  
Vol 118 (1) ◽  
pp. 197-208 ◽  
Author(s):  
Henning Gibbons ◽  
Jutta Stahl
Keyword(s):  
Response Time ◽  
Event Related Potentials ◽  
Related Potentials

Language-Switch of a Parity Judgment Task in Multilinguals

2016 ◽  
Vol 39 (1) ◽  
Author(s):  
Huili Wang ◽  
Ling Meng ◽  
Shuo Cao ◽  
Qilin Lu
Keyword(s):  
Response Time ◽  
Event Related Potentials ◽  
Switching Cost ◽  
Judgment Task ◽  
Language Switching ◽  
Processing Mode ◽  
Mean Response Time ◽  
Related Potentials ◽  
The Mean ◽  
Parity Judgment

AbstractThis study attempts to explore a possible mode of language switching process of multilinguals (Russian-English-Chinese) from the perspectives of language-switching cost based on event related potentials (ERP). Thirty Belarusians studying Chinese in China participated in this experiment. Behavioral results show under three-language-switching-conditions, the mean response time for switch trials is shorter than non-switch trials. Switching cost between Russian and English, Russian and Chinese is symmetric, while English and Chinese is asymmetric. ERP results indicate a negative deflection peaking around 320 ms is observed under conditions of L2-L1 and L3-L1 switching over the entire bilateral frontal sites. The study proposes a processing mode based on the idea of conflict discovery and resolution to contribute to a further understanding of language switching mechanisms.

scholarly journals Effect of lighting illuminance and colour temperature on mental workload in an office setting

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jiayi Bao ◽  
Xinbo Song ◽  
Yan Li ◽  
Yinjie Bai ◽  
Qianxiang Zhou
Keyword(s):  
Response Time ◽  
Mental Workload ◽  
Event Related Potentials ◽  
Error Rates ◽  
Oddball Paradigm ◽  
Colour Temperature ◽  
Task Load ◽  
Subjective Scale ◽  
Related Potentials ◽  
Nasa Task Load Index

AbstractThe mental workload of subjects was tested under different lighting conditions, with colour temperatures ranging from 3000 to 6500 K and illuminance ranging from 300 to 1000 lx. We used both psychological and physiological responses for evaluation. The former was based on NASA Task Load Index (NASA-TLX, NASA), and the latter was based on the electroencephalogram (EEG) P3b analysis of event-related potentials using the “oddball” paradigm experimental task. The results show that as illuminance increases, and the response time becomes longer with a colour temperature of 3000 K (P < 0.01). However, when the colour temperature is set at 6500 K, the response time becomes shorter as the illuminance increases (P < 0.01). P3b amplitudes were significantly affected by colour temperature (P = 0.009) and illuminance (P = 0.038) levels. The highest amplitudes occurred at 3000 K and 750 lx, which is consistent with the trend shown by the subjective scale. The data analysis of error rates is not significant. These results suggest that an office environment with a colour temperature of 3000 K and illumination of 750 lx, which exerts the lowest mental workload, is the most suitable for working. However, the interaction between colour temperature and illuminance in affecting the mental workload of participants is not clear. This work provides more appropriate lighting choices with colour temperature and illuminance to reduce people’s mental workload in office settings.

Differential semantic processing in patients with schizophrenia versus bipolar disorder: an N400 study

2019 ◽  
Vol 31 (6) ◽  
pp. 337-342
Author(s):  
D. Raucher-Chéné ◽  
S. Terrien ◽  
P. Gobin ◽  
F. Gierski ◽  
S. Caillies ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Ambiguity Resolution ◽  
Semantic Processing ◽  
Event Related Potentials ◽  
Congruity Effect ◽  
List Type ◽  
N400 Amplitude ◽  
Language And Thought ◽  
Related Potentials ◽  
Preliminary Study

AbstractObjective:Both bipolar disorder (BD) and schizophrenia (SZ) are associated with language and thought symptoms that probably reflect a semantic memory-related impairment. We conducted a preliminary study to explore the nature of semantic processing in these disorders, using event-related potentials (ERPs).Methods:Twelve patients with BD, 10 patients with SZ and a matched group of 21 healthy controls (HC) underwent EEG recording while they heard sentences containing homophones or control words and performed a semantic ambiguity resolution task on congruent or incongruent targets.Results:Mean N400 amplitude differed between groups for homophones. Patients with SZ made more resolution errors than HC and exhibited a greater N400 congruity effect in ambiguous conditions than BD. In BD, the opposite N400 congruity effect was observed in ambiguous conditions.Conclusion:Results indicated differences in semantic processing between BD and SZ. Further studies with larger populations are needed in order to develop neurophysiological markers of these disorders.Significant OutcomesIn ambiguous conditions, patients with SZ exhibited a greater N400 difference between congruent and incongruent conditions than patients with BD.In ambiguous conditions, patients with SZ exhibited greater N400 amplitude in incongruent conditions than in congruent ones, whereas patients with BD exhibited the opposite N400 congruity effect.Ambiguity resolution results suggest that patients with SZ have difficulty considering the context, while patients with BD overactivate the dominant meaning of homophones and have difficulty inhibiting it.

Sign in / Sign up

Export Citation Format

Share Document