scholarly journals Testing the Efforts Model of Simultaneous Interpreting: An ERP Study

2017 ◽  
Author(s):  
Roman Koshkin ◽  
Yury Shtyrov ◽  
Alex Ossadtchi
Keyword(s):  
Working Memory ◽  
Neural Activity ◽  
Event Related Potential ◽  
Auditory Stimuli ◽  
Simultaneous Interpretation ◽  
Simultaneous Interpreting ◽  
Electrophysiological Evidence ◽  
Task Irrelevant ◽  
Different Levels

AbstractWe utilized the event-related potential (ERP) technique to study neural activity associated with different levels of working memory (WM) load during simultaneous interpretation (SI) in an ecologically valid setting. The amplitude of N1 and P1 components elicited by task-irrelevant tone probes was significantly modulated as a function of WM load but not the direction of interpretation. Furthermore, the latency of the N1 increased insignificantly with WM load. The P1 latency, however, mostly did not depend on either WM load or direction of interpretation. Larger negativity under lower WM loads suggests deeper processing of the auditory stimuli, providing tentative electrophysiological evidence in support of the Efforts Model of SI. Relationships between the direction of interpretation and median WM load are also discussed.

scholarly journals Categorical working memory codes in human visual cortex

2021 ◽  
Author(s):  
Chang Yan ◽  
Thomas B. Christophel ◽  
Carsten Allefeld ◽  
John-Dylan Haynes
Keyword(s):  
Working Memory ◽  
Visual Cortex ◽  
Neural Activity ◽  
Activity Patterns ◽  
Levels Of Abstraction ◽  
Cortical Hierarchy ◽  
Multiple Regions ◽  
Memory Contents ◽  
Memory Codes ◽  
Different Levels

Working memory contents are represented in neural activity patterns across multiple regions of the cortical hierarchy. It has remained unclear to which degree this reflects a specialization for different levels of abstraction. Here, we demonstrate that for color stimuli categorical codes are already present at the level of extrastriate visual cortex (V4 and VO1). Importantly, this categorical coding was observed during working memory, but not during perception.

scholarly journals Features of Russian-Turkish and Turkish-Russian simultaneous interpretation

2021 ◽  
Vol 5 (S4) ◽  
pp. 1451-1463
Author(s):  
Gulsanam A. Abduvalieva
Keyword(s):  
Russian Federation ◽  
Complex Task ◽  
Official Language ◽  
Simultaneous Interpretation ◽  
Simultaneous Interpreting ◽  
Northern Cyprus ◽  
The Status ◽  
Interpretation Process ◽  
The Russian Federation ◽  
Different Levels

The relevance of the study lies in the fact that nowadays cooperation between countries is constantly developing at different levels, which necessitates the use of simultaneous interpreting services. In order to meet the demands of today's market and above all to live up to the expectations, it is important to understand the special features of Russian-Turkish and Turkish-Russian simultaneous interpretation, regardless of subject matter and degree of complexity. Such interpretation is quite a complex task, since Turkish is a language belonging to the group of languages that is spoken by 83 million people worldwide, mostly in Turkey and Northern Cyprus, where it has the status of an official language. In the Russian Federation there is little knowledge of Turkish, which seems to be the main reason for the growing demand for simultaneous interpreting. The purpose of the study is to conduct a linguistic analysis of Russian-Turkish and Turkish-Russian simultaneous interpretation, which will reveal the features of language structures that influence the choice of strategies and actions in the simultaneous interpretation process.

scholarly journals Electrophysiological Evidence of the Capture of Visual Attention

2006 ◽  
Vol 18 (4) ◽  
pp. 604-613 ◽  
Author(s):  
Clayton Hickey ◽  
John J. McDonald ◽  
Jan Theeuwes
Keyword(s):  
Visual Search ◽  
Visual Attention ◽  
Search Strategies ◽  
Event Related Potential ◽  
Search Array ◽  
Vertical Meridian ◽  
Electrophysiological Evidence ◽  
Integral Role ◽  
Task Irrelevant ◽  
Rule Out

We investigated the ability of salient yet task-irrelevant stimuli to capture attention in two visual search experiments. Participants were presented with circular search arrays that contained a highly salient distractor singleton defined by color and a less salient target singleton defined by form. A component of the event-related potential called the N2pc was used to track the allocation of attention to lateralized positions in the arrays. In Experiment 1, a lateralized distractor elicited an N2pc when a concurrent target was presented on the vertical meridian and thus could not elicit lateralized components such as the N2pc. A similar distractor-elicited N2pc was found in Experiment 2, which was conducted to rule out certain voluntary search strategies. Additionally, in Experiment 2 both the distractor and the target elicited the N2pc component when the two stimuli were presented on opposite sides of the search array. Critically, the distractor-elicited N2pc preceded the target-elicited N2pc on these trials. These results demonstrate that participants shifted attention to the target only after shifting attention to the more salient but task-irrelevant distractor. This pattern of results is in line with theories of attention in which stimulus-driven control plays an integral role.

Reaction Time and Brain Waves in Omitted Stimulus Tasks

2010 ◽  
Vol 24 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Oscar H. Hernández ◽  
Muriel Vogel-Sprott
Keyword(s):  
Reaction Time ◽  
Cognitive Processes ◽  
Young Male ◽  
Event Related Potential ◽  
Auditory Stimuli ◽  
Motor Action ◽  
Cognitive Component ◽  
Sensory Modalities ◽  
Two Measures ◽  
Somatosensory Stimuli

A missing stimulus task requires an immediate response to the omission of a regular recurrent stimulus. The task evokes a subclass of event-related potential known as omitted stimulus potential (OSP), which reflects some cognitive processes such as expectancy. The behavioral response to a missing stimulus is referred to as omitted stimulus reaction time (RT). This total RT measure is known to include cognitive and motor components. The cognitive component (premotor RT) is measured by the time from the missing stimulus until the onset of motor action. The motor RT component is measured by the time from the onset of muscle action until the completion of the response. Previous research showed that RT is faster to auditory than to visual stimuli, and that the premotor of RT to a missing auditory stimulus is correlated with the duration of an OSP. Although this observation suggests that similar cognitive processes might underlie these two measures, no research has tested this possibility. If similar cognitive processes are involved in the premotor RT and OSP duration, these two measures should be correlated in visual and somatosensory modalities, and the premotor RT to missing auditory stimuli should be fastest. This hypothesis was tested in 17 young male volunteers who performed a missing stimulus task, who were presented with trains of auditory, visual, and somatosensory stimuli and the OSP and RT measures were recorded. The results showed that premotor RT and OSP duration were consistently related, and that both measures were shorter with respect to auditory stimuli than to visual or somatosensory stimuli. This provides the first evidence that the premotor RT is related to an attribute of the OSP in all three sensory modalities.

Behavioral and electrophysiological indices of inhibitory control in maltreated adolescents and nonmaltreated adolescents

2020 ◽  
pp. 1-10
Author(s):  
Jacqueline Bruce ◽  
Hyoun K. Kim
Keyword(s):  
Inhibitory Control ◽  
Early Adolescence ◽  
Low Income ◽  
Neural Activity ◽  
Child Welfare System ◽  
Event Related Potential ◽  
Typically Developing ◽  
Significant Group ◽  
Significant Group Difference ◽  
Adverse Experiences

Abstract Early adverse experiences are believed to have a profound effect on inhibitory control and the underlying neural regions. In the current study, behavioral and event-related potential (ERP) data were collected during a go/no-go task from adolescents who were involved with the child welfare system due to child maltreatment (n = 129) and low-income, nonmaltreated adolescents (n = 102). The nonmaltreated adolescents were more accurate than the maltreated adolescents on the go/no-go task, particularly on the no-go trials. Paralleling the results with typically developing populations, the nonmaltreated adolescents displayed a more pronounced amplitude of the N2 during the no-go trials than during the go trials. However, the maltreated adolescents demonstrated a more pronounced amplitude of the N2 during the go trials than during the no-go trials. Furthermore, while the groups did not differ during the go trials, the nonmaltreated adolescents displayed a more negative amplitude of the N2 than the maltreated adolescents during no-go trials. In contrast, there was not a significant group difference in amplitude of the P3. Taken together, these results provide evidence that the early adverse experiences encountered by maltreated populations impact inhibitory control and the underlying neural activity in early adolescence.

scholarly journals Effects of multi-domain cognitive training on working memory retrieval in older adults: behavioral and ERP evidence from a Chinese community study

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xiangfei Hong ◽  
You Chen ◽  
Jijun Wang ◽  
Yuan Shen ◽  
Qingwei Li ◽  
...  
Keyword(s):  
Older Adults ◽  
Working Memory ◽  
Training Program ◽  
Cognitive Training ◽  
Local Community ◽  
Training Group ◽  
Event Related Potential ◽  
Control Group ◽  
Baseline Session

AbstractWorking memory (WM) is a fundamental cognitive function that typically declines with age. Previous studies have shown that targeted WM training has the potential to improve WM performance in older adults. In the present study, we investigated whether a multi-domain cognitive training program that was not designed to specifically target WM could improve the behavioral performance and affect the neural activity during WM retrieval in healthy older adults. We assigned healthy older participants (70–78 years old) from a local community into a training group who completed a 3-month multi-domain cognitive training and a control group who only attended health education lectures during the same period. Behavioral and electroencephalography (EEG) data were recorded from participants while performing an untrained delayed match or non-match to category task and a control task at a pre-training baseline session and a post-training follow-up session. Behaviorally, we found that participants in the training group showed a trend toward greater WM performance gains than participants in the control group. Event-related potential (ERP) results suggest that the task-related modulation of P3 during WM retrieval was significantly enhanced at the follow-up session compared with the baseline session, and importantly, this enhancement of P3 modulation was only significant in the training group. Furthermore, no training-related effects were observed for the P2 or N2 component during WM retrieval. These results suggest that the multi-domain cognitive training program that was not designed to specifically target WM is a promising approach to improve WM performance in older adults, and that training-related gains in performance are likely mediated by an enhanced modulation of P3 which might reflect the process of WM updating.

scholarly journals Electrophysiological evidence of different neural processing between visual and audiovisual inhibition of return

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xiaoyu Tang ◽  
Xueli Wang ◽  
Xing Peng ◽  
Qi Li ◽  
Chi Zhang ◽  
...  
Keyword(s):  
Multisensory Integration ◽  
Temporal Resolution ◽  
Inhibition Of Return ◽  
Neural Correlates ◽  
Event Related Potential ◽  
Perceptual Processing ◽  
High Temporal Resolution ◽  
Neural Processing ◽  
Electrophysiological Evidence ◽  
P3 Component

AbstractInhibition of return (IOR) refers to the slower response to targets appearing on the same side as the cue (valid locations) than to targets appearing on the opposite side as the cue (invalid locations). Previous behaviour studies have found that the visual IOR is larger than the audiovisual IOR when focusing on both visual and auditory modalities. Utilising the high temporal resolution of the event-related potential (ERP) technique we explored the possible neural correlates with the behaviour IOR difference between visual and audiovisual targets. The behavioural results revealed that the visual IOR was larger than the audiovisual IOR. The ERP results showed that the visual IOR effect was generated from the P1 and N2 components, while the audiovisual IOR effect was derived only from the P3 component. Multisensory integration (MSI) of audiovisual targets occurred on the P1, N1 and P3 components, which may offset the reduced perceptual processing due to audiovisual IOR. The results of early and late differences in the neural processing of the visual IOR and audiovisual IOR imply that the two target types may have different inhibitory orientation mechanisms.

The relation between prospective memory and working memory: Evidence from event-related potential data

PsyCh Journal ◽  
2013 ◽  
Vol 2 (2) ◽  
pp. 113-121 ◽  
Author(s):  
Ya Wang ◽  
Xiao-yan Cao ◽  
Ji-fang Cui ◽  
David H. K. Shum ◽  
Raymond C. K. Chan
Keyword(s):  
Working Memory ◽  
Prospective Memory ◽  
Event Related Potential
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