The relationship between the visually evoked P300 event-related potential and gamma band oscillation in the human medial and basal temporal lobes

2002 ◽  
Vol 44 (4) ◽  
pp. 421-427 ◽  
Author(s):  
N Watanabe ◽  
N Hirai ◽  
T Maehara ◽  
K Kawai ◽  
H Shimizu ◽  
...  
Keyword(s):  
Gamma Band ◽  
Event Related Potential ◽  
Temporal Lobes ◽  
The Relationship ◽  
Gamma Band Oscillation ◽  
P300 Event Related Potential

scholarly journals Relationship between enlarged perivascular space in hippocampus and P300 event-related potential in patients with acute lacunar stroke

2021 ◽  
Author(s):  
Shan Huang ◽  
Zhixiang Zhang ◽  
Yuqing Mei ◽  
Kuankuan Huang ◽  
Yiping Feng ◽  
...  
Keyword(s):  
Cognitive Function ◽  
Roc Curve ◽  
Verbal Fluency ◽  
Perivascular Space ◽  
Event Related Potential ◽  
P300 Amplitude ◽  
P300 Latency ◽  
Lacunar Stroke ◽  
The Relationship ◽  
P300 Event Related Potential

Abstract Background This study aimed to investigate the relationship between enlarged perivascular space in hippocampus (H-EPVS) and P300 event-related potential (ERP) in patients with acute lacunar stroke. Methods Patients with acute lacunar stroke hospitalized in Changzhou No.2 people's Hospital from February 2019 to July 2020 were collected. All the patients performed the P300 auditory oddball task and a full set of cognitive function tests. We recorded P300 latency and amplitude by EMG evoked potential instrument. H-EPVS showed round, oval and linear structures on MRI T2-weighted images of hippocampus, with clear boundaries and consistency in the direction of the perforating arterioles. Dividing the total number of H-EPVS ≥ 7 into extensive H-EPVS group (n = 61) and non-extensive H-EPVS group (n = 53). ROC curve was used to analyze the relationship between P300 ERP and cognitive function of extensive H-EPVS in patients with acute lacunar stroke. Results A total of 114 patients with acute lacunar stroke were included, and 61 (53.5%) patients were found to have extensive H-EPVS. The P300 latency in patients with extensive H-EPVS( mean and SD, 393.61 ± 30.36) was significantly higher than in non-extensive H-EPVS (mean and SD, 356.4 ± 19.59 ms, t = -7.870, P < 0.01). There was no significant difference in P300 amplitude between the two groups (P > 0.05). In addition, The cognitive function (the field of verbal fluency) in patients with extensive H-EPVS (mean and SD, -0.41 ± 0.50) was significantly lower than in non-extensive H-EPVS (mean and SD, 0.47 ± 0.54, t = 9.017, P < 0.01). Further analysis shows that in patients with acute lacunar stroke, P300 latency was positively associated with H-EPVS counts (r = 0.726, P = 0.000). H-EPVS counts was negatively associated with cognitive function score (the field of verbal fluency) (r=-0.705, P = 0.000). ROC curve analysis showed that the index of cognitive impairment diagnosed by P300 in patients with acute lacunar stoke was 0.796. Conclusion Extensive H-EPVS has a high incidence in patients with acute lacunar stroke. The P300 latency may be used as an early indicator to evaluate the verbal fluency function of extensive H-EPVS patients with acute lacunar stroke.

scholarly journals Eliciting and Recording Event Related Potentials (ERPs) in Behaviourally Unresponsive Populations: A Retrospective Commentary on Critical Factors

2021 ◽  
Vol 11 (7) ◽  
pp. 835
Author(s):  
Alexander Rokos ◽  
Richard Mah ◽  
Rober Boshra ◽  
Amabilis Harrison ◽  
Tsee Leng Choy ◽  
...  
Keyword(s):  
Event Related Potentials ◽  
Stimulus Presentation ◽  
Event Related Potential ◽  
Critical Factors ◽  
Healthy Elderly ◽  
States Of Consciousness ◽  
Long Latency ◽  
Eeg Data ◽  
Related Potentials ◽  
The Relationship

A consistent limitation when designing event-related potential paradigms and interpreting results is a lack of consideration of the multivariate factors that affect their elicitation and detection in behaviorally unresponsive individuals. This paper provides a retrospective commentary on three factors that influence the presence and morphology of long-latency event-related potentials—the P3b and N400. We analyze event-related potentials derived from electroencephalographic (EEG) data collected from small groups of healthy youth and healthy elderly to illustrate the effect of paradigm strength and subject age; we analyze ERPs collected from an individual with severe traumatic brain injury to illustrate the effect of stimulus presentation speed. Based on these critical factors, we support that: (1) the strongest paradigms should be used to elicit event-related potentials in unresponsive populations; (2) interpretation of event-related potential results should account for participant age; and (3) speed of stimulus presentation should be slower in unresponsive individuals. The application of these practices when eliciting and recording event-related potentials in unresponsive individuals will help to minimize result interpretation ambiguity, increase confidence in conclusions, and advance the understanding of the relationship between long-latency event-related potentials and states of consciousness.

The relationship between acute stress and neurophysiological and behavioral measures of food-related inhibitory control: An event-related potential (ERP) study

Appetite ◽  
2021 ◽  
pp. 105862
Author(s):  
Whitney D. Allen ◽  
Rebekah E. Rodeback ◽  
Kaylie A. Carbine ◽  
Ariana M. Hedges-Muncy ◽  
James D. LeCheminant ◽  
...  
Keyword(s):  
Inhibitory Control ◽  
Acute Stress ◽  
Event Related Potential ◽  
Behavioral Measures ◽  
The Relationship

Visual event-related potential studies supporting the validity of VARK learning styles' visual and read/write learners

2016 ◽  
Vol 40 (2) ◽  
pp. 206-212 ◽  
Author(s):  
Sarawin Thepsatitporn ◽  
Chailerd Pichitpornchai
Keyword(s):  
Learning Styles ◽  
Event Related Potential ◽  
Term Memory ◽  
Objective Evidence ◽  
Subjective Evidence ◽  
The Right ◽  
Picture Superiority ◽  
The Relationship ◽  
Test Result ◽  
P200 Amplitude

The validity of learning styles needs supports of additional objective evidence. The identification of learning styles using subjective evidence from VARK questionnaires (where V is visual, A is auditory, R is read/write, and K is kinesthetic) combined with objective evidence from visual event-related potential (vERP) studies has never been investigated. It is questionable whether picture superiority effects exist in V learners and R learners. Thus, the present study aimed to investigate whether vERP could show the relationship between vERP components and VARK learning styles and to identify the existence of picture superiority effects in V learners and R learners. Thirty medical students (15 V learners and 15 R learners) performed recognition tasks with vERP and an intermediate-term memory (ITM) test. The results of within-group comparisons showed that pictures elicited larger P200 amplitudes than words at the occipital 2 site ( P < 0.05) in V learners and at the occipital 1 and 2 sites ( P < 0.05) in R learners. The between-groups comparison showed that P200 amplitudes elicited by pictures in V learners were larger than those of R learners at the parietal 4 site ( P < 0.05). The ITM test result showed that a picture set showed distinctively more correct responses than that of a word set for both V learners ( P < 0.001) and R learners ( P < 0.01). In conclusion, the result indicated that the P200 amplitude at the parietal 4 site could be used to objectively distinguish V learners from R learners. A lateralization existed to the right brain (occipital 2 site) in V learners. The ITM test demonstrated the existence of picture superiority effects in both learners. The results revealed the first objective electrophysiological evidence partially supporting the validity of the subjective psychological VARK questionnaire study.

Tai Chi and meditation-plus-exercise benefit neural substrates of executive function: a cross-sectional, controlled study

2014 ◽  
Vol 11 (4) ◽  
Author(s):  
Teresa D. Hawkes ◽  
Wayne Manselle ◽  
Marjorie H. Woollacott
Keyword(s):  
Executive Function ◽  
Aerobic Exercise ◽  
Tai Chi ◽  
Neural Substrates ◽  
Event Related Potential ◽  
Controlled Study ◽  
Neural Function ◽  
Cross Sectional ◽  
P300 Event Related Potential

Abstract: We report the first controlled study of Tai Chi effects on the P300 event-related potential, a neuroelectric index of human executive function. Tai Chi is a form of exercise and moving meditation. Exercise and meditation have been associated with enhanced executive function. This cross-sectional, controlled study utilized the P300 event-related potential (ERP) to compare executive network neural function between self-selected long-term Tai Chi, meditation, aerobic fitness, and sedentary groups. We hypothesized that because Tai Chi requires moderate aerobic and mental exertion, this group would show similar or better executive neural function compared to meditation and aerobic exercise groups. We predicted all health training groups would outperform sedentary controls.: Fifty-four volunteers (Tai Chi, n=10; meditation, n=16; aerobic exercise, n=16; sedentary, n=12) were tested with the Rockport 1-mile walk (estimated VO: Only Tai Chi and meditation plus exercise groups demonstrated larger P3b ERP switch trial amplitudes compared to sedentary controls.: Our results suggest long-term Tai Chi practice, and meditation plus exercise may benefit the neural substrates of executive function.

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