Peak selection and latency jitter correction in developmental event‐related potentials

2021 ◽  
Vol 63 (7) ◽  
Author(s):  
Maggie W. Guy ◽  
Stefania Conte ◽  
Aslı Bursalıoğlu ◽  
John E. Richards
Keyword(s):  
Event Related Potentials ◽  
Developmental Event ◽  
Latency Jitter ◽  
Related Potentials

scholarly journals A New Perspective on Individual Reliability beyond Group Effects for Event-related Potentials: A Multisensory Investigation and Computational Modeling

2021 ◽  
Author(s):  
Zhenxing Hu ◽  
Zhiguo Zhang ◽  
Zhen Liang ◽  
Li Zhang ◽  
Linling Li ◽  
...  
Keyword(s):  
Comprehensive Evaluation ◽  
Event Related Potentials ◽  
Group Level ◽  
Individual Level ◽  
Latency Jitter ◽  
Related Potentials ◽  
New Perspective ◽  
The Individual ◽  
Test Retest Reliability ◽  
Group Effects

AbstractThe dominant approach in investigating the individual reliability for event-related potentials (ERPs) is to extract peak-related features at electrodes showing the strongest group effects. Such a peak-based approach implicitly assumes ERP components showing a stronger group effect are also more reliable, but this assumption has not been substantially validated and few studies have investigated the reliability of ERPs beyond peaks. In this study, we performed a rigorous evaluation of the test-retest reliability of ERPs collected in a multisensory and cognitive experiment from 82 healthy adolescents, each having two sessions. By comparing group effects and individual reliability, we found that a stronger group-level response in ERPs did not guarantee a higher reliability. Further, by simulating ERPs with a computational model, we found that the consistency between group-level ERP responses and individual reliability was modulated by inter-subject latency jitter and inter-trial variability. The current findings suggest that the conventional peak-based approach may underestimate the individual reliability in ERPs. Hence, a comprehensive evaluation of the reliability of ERP measurements should be considered in individual-level neurophysiological trait evaluation and psychiatric disorder diagnosis.

Face and Word Recognition in Patients with Left and Right Hemispheric Lesions: Evidence from Reaction Times and ERPs

2002 ◽  
Vol 13 (1) ◽  
pp. 69-83 ◽  
Author(s):  
Stefan R. Schweinberger ◽  
Thomas Klos ◽  
Werner Sommer
Keyword(s):  
Slow Wave ◽  
Reaction Times ◽  
Memory Search ◽  
Event Related Potentials ◽  
Performance Deficits ◽  
Set Size ◽  
Left Brain ◽  
Related Potentials ◽  
Abstract Words ◽  
Left Brain Damage

Abstract: We recorded reaction times (RTs) and event-related potentials (ERPs) in patients with unilateral lesions during a memory search task. Participants memorized faces or abstract words, which were then recognized among new ones. The RT deficit found in patients with left brain damage (LBD) for words increased with memory set size, suggesting that their problem relates to memory search. In contrast, the RT deficit found in patients with RBD for faces was apparently related to perceptual encoding, a conclusion also supported by their reduced P100 ERP component. A late slow wave (720-1720 ms) was enhanced in patients, particularly to words in patients with LBD, and to faces in patients with RBD. Thus, the slow wave was largest in the conditions with most pronounced performance deficits, suggesting that it reflects deficit-related resource recruitment.

Sign in / Sign up

Export Citation Format

Share Document