High Psychopathic Trait Females Exhibit Reduced Startle Potentiation and Increased P3 Amplitude

2011 ◽  
Vol 29 (5) ◽  
pp. 649-666 ◽  
Author(s):  
Nathaniel E. Anderson ◽  
Matthew S. Stanford ◽  
Li Wan ◽  
Keith A. Young
Keyword(s):  
Psychopathic Trait ◽  
P3 Amplitude ◽  
Startle Potentiation

The Relation Between Aerobic Fitness and Cognitive Performance

2016 ◽  
Vol 30 (3) ◽  
pp. 102-113 ◽  
Author(s):  
Chun-Hao Wang ◽  
Chun-Ming Shih ◽  
Chia-Liang Tsai
Keyword(s):  
Cognitive Performance ◽  
Aerobic Fitness ◽  
Reaction Times ◽  
Mediation Model ◽  
Brain Potentials ◽  
Fitness Level ◽  
Eeg Data ◽  
Attention Performance ◽  
P3 Amplitude ◽  
The Relationship

Abstract. This study aimed to assess whether brain potentials have significant influences on the relationship between aerobic fitness and cognition. Behavioral and electroencephalographic (EEG) data was collected from 48 young adults when performing a Posner task. Higher aerobic fitness is related to faster reaction times (RTs) along with greater P3 amplitude and shorter P3 latency in the valid trials, after controlling for age and body mass index. Moreover, RTs were selectively related to P3 amplitude rather than P3 latency. Specifically, the bootstrap-based mediation model indicates that P3 amplitude mediates the relationship between fitness level and attention performance. Possible explanations regarding the relationships among aerobic fitness, cognitive performance, and brain potentials are discussed.

Phase of menstrual cycle modulates eye-blink startle potentiation and magnitude

1996 ◽  
Author(s):  
Rachel Manber ◽  
Keith W. Burton ◽  
John J. Allen ◽  
Alfred W. Kaszniak
Keyword(s):  
Menstrual Cycle ◽  
Eye Blink ◽  
Startle Potentiation

Delta phase reset predicts conflict-related changes in P3 amplitude and behavior

2020 ◽  
Vol 1730 ◽  
pp. 146662 ◽  
Author(s):  
Eric Rawls ◽  
Vladimir Miskovic ◽  
Connie Lamm
Keyword(s):  
Phase Reset ◽  
Delta Phase ◽  
P3 Amplitude ◽  
And Behavior

Association of P3 amplitude to treatment completion in substance dependent individuals

2010 ◽  
Vol 177 (1-2) ◽  
pp. 223-227 ◽  
Author(s):  
Li Wan ◽  
Robyn M. Baldridge ◽  
Amanda M. Colby ◽  
Matthew S. Stanford
Keyword(s):  
Treatment Completion ◽  
Substance Dependent ◽  
P3 Amplitude

scholarly journals Preprint: Psychometric properties of startle and corrugator response in NPU, Affective Picture Viewing, and Resting State tasks

2018 ◽  
Author(s):  
Jesse T Kaye ◽  
Daniel E. Bradford ◽  
John Joseph Curtin
Keyword(s):  
Psychometric Properties ◽  
Resting State ◽  
Startle Response ◽  
Comprehensive Evaluation ◽  
Temporal Stability ◽  
Frequency Domains ◽  
Two Measures ◽  
The Mean ◽  
Picture Viewing ◽  
Startle Potentiation

The current study provides a comprehensive evaluation of critical psychometric properties of commonly used psychophysiology laboratory tasks/measures within the NIMH RDoC. Participants (N = 128) completed the No Shock, Predictable Shock, Unpredictable Shock (NPU) task, Affective Picture Viewing task, and Resting State task at two study visits separated by one week. We examined potentiation/modulation scores in NPU (predictable or unpredictable shock vs. no shock) and Affective Picture Viewing tasks (pleasant or unpleasant vs. neutral pictures) for startle and corrugator responses with two commonly used quantification methods. We quantified startle potentiation/modulation scores with raw and standardized responses. We quantified corrugator potentiation/modulation in the time and frequency domains. We quantified general startle reactivity in the Resting State Task as the mean raw startle response during the task. For these three tasks, two measures, and two quantification methods we evaluated effect size robustness and stability, internal consistency (i.e., split-half reliability), and one-week temporal stability. The psychometric properties of startle potentiation in the NPU task were good but concerns were noted for corrugator potentiation in this task. Some concerns also were noted for the psychometric properties of both startle and corrugator modulation in the Affective Picture Viewing task, in particular for pleasant picture modulation. Psychometric properties of general startle reactivity in the Resting State task were good. Some salient differences in the psychometric properties of the NPU and Affective Picture Viewing tasks were observed within and across quantification methods.

scholarly journals Effects of tDCS Dosage on Working Memory in Healthy Participants

2017 ◽  
Author(s):  
Stevan Nikolin ◽  
Donel Martin ◽  
Colleen K. Loo ◽  
Tjeerd W. Boonstra
Keyword(s):  
Working Memory ◽  
Response Time ◽  
Effect Size ◽  
Biological Effects ◽  
Parallel Group Design ◽  
Parallel Group ◽  
P3 Amplitude ◽  
Time Accuracy ◽  
Study Designs ◽  
Healthy Participants

AbstractBackgroundTranscranial direct current stimulation (tDCS) has been found to improve working memory (WM) performance in healthy participants following a single session. However, results are mixed and the overall effect size is small. Interpretation of these results is confounded by heterogeneous study designs, including differences in tDCS dose (current intensity) and sham conditions used.AimsWe systematically investigated the effect of tDCS dose on working memory using behavioural and neurophysiological outcomes.MethodsIn a single-blind parallel group design, 100 participants were randomised across five groups to receive 15 minutes of bifrontal tDCS at different current intensities (2mA, 1mA, and three sham tDCS conditions at 0.034mA, 0.016mA, or 0mA). EEG activity was acquired while participants performed a WM task prior to, during, and following tDCS. Response time, accuracy and an event-related EEG component (P3) were evaluated.ResultsWe found no significant differences in response time or performance accuracy between current intensities. The P3 amplitude was significantly lower in the 0mA condition compared to the 0.034mA, 1mA and 2mA tDCS conditions. Changes in WM accuracy were moderately correlated with changes in the P3 amplitude following tDCS compared to baseline levels (r = 0.34).ConclusionsWorking memory was not significantly altered by tDCS, regardless of dose. The P3 amplitude showed that stimulation at 1mA, 2mA and a sham condition (0.034mA) had biological effects, with the largest effect size for 1mA stimulation. These findings indicate higher sensitivity of neurophysiological outcomes to tDCS and suggests that sham stimulation previously considered inactive may alter neuronal function.

scholarly journals Postural freezing relates to startle potentiation in a human fear‐conditioning paradigm

2021 ◽  
Author(s):  
Vanessa A. van Ast ◽  
Floris Klumpers ◽  
Raoul P. P. P. Grasman ◽  
Angelos‐Miltiadis Krypotos ◽  
Karin Roelofs
Keyword(s):  
Fear Conditioning ◽  
Conditioning Paradigm ◽  
Startle Potentiation

scholarly journals Psychopathic trait and multidimensional empathy

2013 ◽  
Vol 11 (1) ◽  
pp. 13-18
Author(s):  
Takeyuki Oba ◽  
Yoshiko Nishimatsu ◽  
Hideki Ohira
Keyword(s):  
Psychopathic Trait
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