scholarly journals Trait Disinhibition and NoGo Event-Related Potentials in Violent Mentally Disordered Offenders and Healthy Controls

2020 ◽  
Vol 11 ◽  
Author(s):  
Carl Delfin ◽  
Emily Ruzich ◽  
Märta Wallinius ◽  
Malin Björnsdotter ◽  
Peter Andiné
Keyword(s):  
Event Related Potentials ◽  
Maladaptive Behaviors ◽  
Healthy Controls ◽  
Mentally Disordered Offenders ◽  
Mentally Disordered ◽  
Outcome Monitoring ◽  
Related Potentials ◽  
Neural Efficiency ◽  
P3 Amplitude ◽  
Biobehavioral Markers

Trait disinhibition may function as a dispositional liability toward maladaptive behaviors relevant in the treatment of mentally disordered offenders (MDOs). Reduced amplitude and prolonged latency of the NoGo N2 and P3 event-related potentials have emerged as promising candidates for transdiagnostic, biobehavioral markers of trait disinhibition, yet no study has specifically investigated these two components in violent, inpatient MDOs. Here, we examined self-reported trait disinhibition, experimentally assessed response inhibition, and NoGo N2 and P3 amplitude and latency in male, violent MDOs (N = 27) and healthy controls (N = 20). MDOs had a higher degree of trait disinhibition, reduced NoGo P3 amplitude, and delayed NoGo P3 latency compared to controls. The reduced NoGo P3 amplitude and delayed NoGo P3 latency in MDOs may stem from deficits during monitoring or evaluation of behavior. NoGo P3 latency was associated with increased trait disinhibition in the whole sample, suggesting that trait disinhibition may be associated with reduced neural efficiency during later stages of outcome monitoring or evaluation. Findings for NoGo N2 amplitude and latency were small and non-robust. With several limitations in mind, this is the first study to demonstrate attenuated NoGo P3 amplitude and delayed NoGo P3 latency in violent, inpatient MDOs compared to healthy controls.

scholarly journals Inhibitory Top-Down Control Deficits in Schizophrenia With Auditory Verbal Hallucinations: A Go/NoGo Task

2021 ◽  
Vol 12 ◽  
Author(s):  
Qiaoling Sun ◽  
Yehua Fang ◽  
Yongyan Shi ◽  
Lifeng Wang ◽  
Xuemei Peng ◽  
...  
Keyword(s):  
Reaction Time ◽  
Event Related Potentials ◽  
Healthy Controls ◽  
Top Down ◽  
Auditory Verbal Hallucinations ◽  
Parietal Area ◽  
Significant Difference ◽  
Related Potentials ◽  
Patient Groups ◽  
P3 Amplitude

Objective: Auditory verbal hallucinations (AVH), with unclear mechanisms, cause extreme distresses to schizophrenia patients. Deficits of inhibitory top-down control may be linked to AVH. Therefore, in this study, we focused on inhibitory top-down control in schizophrenia patients with AVH.Method: The present study recruited 40 schizophrenia patients, including 20 AVH patients and 20 non-AVH patients, and 23 healthy controls. We employed event-related potentials to investigate the N2 and P3 amplitude and latency differences among these participants during a Go/NoGo task.Results: Relative to healthy controls, the two patient groups observed longer reaction time (RT) and reduced accuracy. The two patient groups had smaller NoGo P3 amplitude than the healthy controls, and the AVH patients showed smaller NoGo P3 amplitude than the non-AVH patients. In all the groups, the parietal area showed smaller NoGo P3 than frontal and central areas. However, no significant difference was found in N2 and Go P3 amplitude between the three groups.Conclusions: AVH patients might have worse inhibitory top-down control, which might be involved in the occurrence of AVH. Hopefully, our results could enhance understanding of the pathology of AVH.

Cognitive Processing in Headache Associated with Sexual Activity

Cephalalgia ◽  
2003 ◽  
Vol 23 (7) ◽  
pp. 545-551 ◽  
Author(s):  
A Frese ◽  
K Frese ◽  
EB Ringelstein ◽  
I-W Husstedt ◽  
S Evers
Keyword(s):  
Sexual Activity ◽  
Cognitive Processing ◽  
Event Related Potentials ◽  
Control Group ◽  
Specific Information ◽  
Healthy Controls ◽  
Related Potentials ◽  
Healthy Control ◽  
P3 Amplitude

Cognitive processing as measured by event-related potentials (ERP) in patients suffering from the explosive subtype of headache associated with sexual activity (HSA type 2) was investigated. Visual ERP were measured in 24 patients with HSA type 2 outside the headache period. The differences of the first and the second part of measurement were evaluated separately to determine the amount of cognitive habituation. Twenty-four sex- and age-matched healthy subjects and 24 patients with migraine without aura served as controls. A missing increase of P3 latency during the second part of the measurement was found in 79% of patients with HSA type 2 and in 75% with migraine, but only in 17% of the healthy controls ( P < 0.001). The P3 amplitude was increased during the second part in 71% of patients with HSA type 2 and in 79% with migraine, but only in 33% of the healthy controls ( P = 0.02). Mean P3 latency was decreased and mean P3 amplitude was increased during the second part of the measurement in HSA type 2 and in migraine but not in the healthy control group. Patients with HSA type 2 have a loss of cognitive habituation as measured by ERP. This specific information processing is very similar to that in migraine observed in previous studies.

Effects of cannabis use on event related potentials in subjects at ultra high risk for psychosis and healthy controls

2013 ◽  
Vol 88 (2) ◽  
pp. 149-156 ◽  
Author(s):  
Mirjam J. van Tricht ◽  
Emma C. Harmsen ◽  
Johannes H.T.M. Koelman ◽  
Lo J. Bour ◽  
Thérèse A. van Amelsvoort ◽  
...  
Keyword(s):  
High Risk ◽  
Event Related Potentials ◽  
Cannabis Use ◽  
Healthy Controls ◽  
Ultra High Risk ◽  
Related Potentials

scholarly journals Monitoring Migraine Cycle Dynamics with an Easy-to-Use Electrophysiological Marker—A Pilot Study

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3918 ◽  
Author(s):  
Goded Shahaf ◽  
Pora Kuperman ◽  
Yuval Bloch ◽  
Shahak Yariv ◽  
Yelena Granovsky
Keyword(s):  
Pilot Study ◽  
Stress Level ◽  
Event Related Potentials ◽  
Healthy Controls ◽  
Preliminary Results ◽  
Auditory Oddball ◽  
Control Subjects ◽  
Related Potentials ◽  
Auditory Oddball Task ◽  
The Brain

Migraine attacks can cause significant discomfort and reduced functioning for days at a time, including the pre-ictal and post-ictal periods. During the inter-ictsal period, however, migraineurs seem to function normally. It is puzzling, therefore, that event-related potentials of migraine patients often differ in the asymptomatic and inter-ictal period. Part of the electrophysiological dynamics demonstrated in the migraine cycle are attention related. In this pilot study we evaluated an easy-to-use new marker, the Brain Engagement Index (BEI), for attention monitoring during the migraine cycle. We sampled 12 migraine patients for 20 days within one calendar month. Each session consisted of subjects’ reports of stress level and migraine-related symptoms, and a 5 min EEG recording, with a 2-electrode EEG device, during an auditory oddball task. The first minute of the EEG sample was analyzed. Repetitive samples were also obtained from 10 healthy controls. The brain engagement index increased significantly during the pre-ictal (p ≈ 0.001) and the ictal (p ≈ 0.020) periods compared with the inter-ictal period. No difference was observed between the pre-ictal and ictal periods. Control subjects demonstrated intermediate Brain Engagement Index values, that is, higher than inter-ictal, yet lower than pre-ictal. Our preliminary results demonstrate the potential advantage of the use of a simple EEG system for improved prediction of migraine attacks. Further study is required to evaluate the efficacy of the Brain Engagement Index in monitoring the migraine cycle and the possible effects of interventions.

Abnormal Neural Basis of Emotional Conflict Control in Treatment-Resistant Depression

2016 ◽  
Vol 48 (2) ◽  
pp. 103-110 ◽  
Author(s):  
Song Xue ◽  
Shanshan Wang ◽  
Xia Kong ◽  
Jiang Qiu
Keyword(s):  
Stroop Task ◽  
Event Related Potentials ◽  
Frontal Region ◽  
Healthy Controls ◽  
Treatment Resistant Depression ◽  
Treatment Resistant ◽  
Neural Basis ◽  
Emotional Conflict ◽  
Related Potentials ◽  
Resistant Depression

Emotional conflict has received increased attention as a research topic. The objective of this study is to confirm that the processing of emotional conflict is impaired in treatment-resistant depression (TRD). We compared the event-related potentials of 17 patients with TRD and 17 healthy controls during the face-word Stroop task, which is an effective way of assessing the effects of emotional conflict directly. Compared with healthy controls, the accuracy scores of the TRD patients were lower in both “congruent stimuli” and “incongruent stimuli” conditions, and their response times were longer. The TRD patients also had larger N2 amplitudes over the frontal region, regardless of stimulus condition, which might reflect that TRD patients pay more attention to emotional information. A larger P3 amplitude over the frontal region for “incongruent stimuli minus congruent stimuli” was also found among patients with TRD, which indicates interference effects in the Stroop task. The results of this study provide novel behavioral and neurophysiological evidence of anomalies in cognitive inhibition among patients with TRD using the word-face task. These findings not only improve our understanding of deficient inhibition in TRD, but also pave the way for a cognitive neuropsychiatric model of depression.

A Preliminary Study of P200 in First-episode Patients, their Relatives and Healthy Controls: Search of New Endophenotypes

2009 ◽  
Vol 24 (S1) ◽  
pp. 1-1
Author(s):  
C. Silveira ◽  
F. Santos ◽  
F. Barbosa ◽  
A. Pedro ◽  
A. Palha ◽  
...  
Keyword(s):  
Event Related Potentials ◽  
First Episode ◽  
Healthy Controls ◽  
Significant Group ◽  
Auditory Oddball ◽  
First Degree Relatives ◽  
Confounding Variables ◽  
Related Potentials ◽  
Post Hoc ◽  
The Relationship

Background/Objective:Despite the well established genetic basis of schizophrenia, the relationship between genes and the disorder itself is still elusive. Individual endophenotypes, which reduce the complexity of genetic analyses, allow statistical approaches with quantitative trait methodologies. P200 abnormalities of event-related potentials have been reported in schizophrenia with conflicting results. The present study aims to characterize the P200 in first-episode patients and to compare it with that of first-degree relatives and controls.Methods:ERPs were recorded at 19 sites with an auditory oddball for 21 first-episode patients with schizophrenia (mean age=25.14; SD=6.20), 41 of their first degree relatives (mean age=47.65; SD=15.53) and 19 healthy controls (mean age=26.32; SD=7.16). Potentials were averaged for frequent stimuli and P200 amplitude and latency measures were obtained.Results:Analysis of midline electrodes revealed significant group effects for P200 peak amplitudes (F(2, 78)=3.315, p=.042), but not for peak latencies. Post-hoc analyses revealed that patients with schizophrenia present significantly lower P200 amplitudes (M=2.466; SD=1.564) than controls (M=5.037; SD=2.500) at Pz (T(38)=3.851, p=.003). No other significant differences were found.Conclusion:The results obtained do not straight-forwardly support the P200 peak amplitude nor peak latency as an endophenotype of schizophrenia. However, the trends of our results may suggest that the P200 amplitudes of relatives may present intermediate values between healthy controls (with higher amplitudes) and patients (with lower amplitudes). Further statistical analyses will be required in order to disentangle the effects of possible confounding variables.

scholarly journals Changes in face and face pareidolia processing in patients with migraine: an ERP study

2020 ◽  
Vol 123 (3) ◽  
pp. 876-884 ◽  
Author(s):  
Gülsüm Akdeniz ◽  
Sadiye Gumusyayla ◽  
Gonul Vural ◽  
Hesna Bektas ◽  
Orhan Deniz
Keyword(s):  
Migraine With Aura ◽  
Migraine Without Aura ◽  
Cortical Excitability ◽  
Event Related Potentials ◽  
Event Related Potential ◽  
Healthy Controls ◽  
Positive Potential ◽  
Cortical Hyperexcitability ◽  
Significant Difference ◽  
Related Potentials

Migraine is a multifactorial brain disorder characterized by recurrent disabling headache attacks. One of the possible mechanisms in the pathogenesis of migraine may be a decrease in inhibitory cortical stimuli in the primary visual cortex attributable to cortical hyperexcitability. The aim of this study was to investigate the neural correlates underlying face and face pareidolia processing in terms of the event-related potential (ERP) components, N170, vertex positive potential (VPP), and N250, in patients with migraine. In total, 40 patients with migraine without aura, 23 patients with migraine and aura, and 30 healthy controls were enrolled. We recorded ERPs during the presentation of face and face pareidolia images. N170, VPP, and N250 mean amplitudes and latencies were examined. N170 was significantly greater in patients with migraine with aura than in healthy controls. VPP amplitude was significantly greater in patients with migraine without aura than in healthy controls. The face stimuli evoked significantly earlier VPP responses to faces (168.7 ms, SE = 1.46) than pareidolias (173.4 ms, SE = 1.41) in patients with migraine with aura. We did not find a significant difference between N250 amplitude for face and face pareidolia processing. A significant difference was observed between the groups for pareidolia in terms of N170 [F(2,86) = 14,75, P < 0.001] and VPP [F(2,86) = 16.43, P < 0.001] amplitudes. Early ERPs are a valuable tool to study the neural processing of face processing in patients with migraine to demonstrate visual cortical hyperexcitability. NEW & NOTEWORTHY Event-related potentials (ERPs) are important for understanding face and face pareidolia processing in patients with migraine. N170, vertex positive potential (VPP), and N250 ERPs were investigated. N170 was revealed as a potential component of cortical excitability for face and face pareidolia processing in patients with migraine.

scholarly journals A Preliminary Study of p200 in First-episode Patients, their Relatives and Healthy Controls: Search of New Endophenotypes

2009 ◽  
Vol 24 (S1) ◽  
pp. 1-1
Author(s):  
C. Silveira ◽  
F. Santos ◽  
F. Barbosa ◽  
A. Pedro ◽  
A. Palha ◽  
...  
Keyword(s):  
Event Related Potentials ◽  
First Episode ◽  
Healthy Controls ◽  
Significant Group ◽  
Auditory Oddball ◽  
First Degree Relatives ◽  
Confounding Variables ◽  
Related Potentials ◽  
Post Hoc ◽  
The Relationship

Background/Objective:Despite the well established genetic basis of schizophrenia, the relationship between genes and the disorder itself is still elusive. Individual endophenotypes, which reduce the complexity of genetic analyses, allow statistical approaches with quantitative trait methodologies. P200 abnormalities of event-related potentials have been reported in schizophrenia with conflicting results. the present study aims to characterize the P200 in first-episode patients and to compare it with that of first-degree relatives and controls.Methods:ERPs were recorded at 19 sites with an auditory oddball for 21 first-episode patients with schizophrenia (mean age=25.14; SD=6.20), 41 of their first degree relatives (mean age=47.65; SD=15.53) and 19 healthy controls (mean age=26.32; SD=7.16). Potentials were averaged for frequent stimuli and P200 amplitude and latency measures were obtained.Results:Analysis of midline electrodes revealed significant group effects for P200 peak amplitudes (F(2, 78)=3.315, p=.042), but not for peak latencies. Post-hoc analyses revealed that patients with schizophrenia present significantly lower P200 amplitudes (M=2.466; SD=1.564) than controls (M=5.037; SD=2.500) at Pz (T(38)=3.851, p=.003). No other significant differences were found.Conclusion:The results obtained do not straight-forwardly support the P200 peak amplitude nor peak latency as an endophenotype of schizophrenia. However, the trends of our results may suggest that the P200 amplitudes of relatives may present intermediate values between healthy controls (with higher amplitudes) and patients (with lower amplitudes). Further statistical analyses will be required in order to disentangle the effects of possible confounding variables.

Sign in / Sign up

Export Citation Format

Share Document