Browsing by Subject "EEG"
Now showing items 1-20 of 38
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Balancing true and false detection of intermittent sensory targets by adjusting the inputs to the evidence accumulation process
(2023)Decisions about noisy stimuli are widely understood to be made by accumulating evidence up to a decision bound that can be adjusted according to task demands. However, relatively little is known about how such mechanisms ... -
A bridge between the breath and the brain: Synchronization of respiration, a pupillometric marker of the locus coeruleus, and an eeg marker of attentional control state
(2021)Yogic and meditative traditions have long held that the fluctuations of the breath and the mind are intimately related. While respiratory modulation of cortical activity and attentional switching are established, the extent ... -
Clinical and genetic Rett syndrome variants are defined by stable electrophysiological profiles
(BMC, 2018)Background: Rett Syndrome (RTT) is a complex neurodevelopmental disorder, frequently associated with epilepsy.Despite increasing recognition of the clinical heterogeneity of RTT and its variants (e.g Classical, Hanefeld ... -
Clinical and Genetic Rett Syndrome Variants are Defined by Stable Electrophysiological Profiles
(2018)Background: Rett Syndrome (RTT) is a complex neuro developmental disorder, frequently associated with epilepsy. Despite increasing recognition of the clinical heterogeneity of RTT and its variants (e.g Classical, Hanefeld ... -
A comparison of covert and overt attention as a control option in a steady-state visual evoked potential-based brain computer interface
(2004)EEG data were recorded from occipital scalp regions of subjects who attended to an alternating checkerboard stimulus in one visual field while ignoring a similar stimulus of a different frequency in the opposite ... -
A comparison of covert and overt attention as a control option in a steady-state visual evoked potential-based brain computer interface
(IEEE, 2004)EEG data were recorded from occipital scalp regions of subjects who attended to an alternating checkerboard stimulus in one visual field while ignoring a similar stimulus of a different frequency in the opposite visual ... -
Congruent Visual Speech Enhances Cortical Entrainment to Continuous Auditory Speech in Noise-Free Conditions.
(2015)Congruent audiovisual speech enhances our ability to comprehend a speaker, even in noise-free conditions. When incongruent auditory and visual information is presented concurrently, it can hinder a listener's perception ... -
The cortical representation of the speech envelope is earlier for audiovisual speech than audio speech.
(2014)Visual speech can greatly enhance a listener's comprehension of auditory speech when they are presented simultaneously. Efforts to determine the neural underpinnings of this phenomenon have been hampered by the limited ... -
Development of an Objective Assessment of the Cognitive, Posturographic, and Electrophysiological Phenotype of the Fragile X Premutation, and analysis of their contribution to Postural Instability.
(Trinity College Dublin. School of Medicine. Discipline of Clinical Medicine, 2021)The Fragile X Premutation is a complex genetic anomaly which affects one in 260 females and 400 males and results in a broad range of symptoms and distinct conditions. The premutation phenotype involves cognitive and motor ... -
Dysfunction of attention switching networks in amyotrophic lateral sclerosis.
(2019)Objective: To localise and characterise changes in cognitive networks in Amyotrophic Lateral Sclerosis (ALS) using source analysis of mismatch negativity (MMN) waveforms. Rationale: The MMN waveform has an increased average ... -
An electrophysiological signal that precisely tracks the emergence of error awareness.
(2012)Recent electrophysiological research has sought to elucidate the neural mechanisms necessary for the conscious awareness of action errors. Much of this work has focused on the error positivity (Pe), a neural signal that ... -
Estimation of coherence using the median is robust against EEG artefacts
(2017)Coherence is a mathematical measure of correlation in the frequency domain, commonly used to quantify the oscillatory synchrony of bio-signals such as the electroencephalogram (EEG). In biomedical applications, such as ... -
An Exploration of the Applications of Neurally-Informed Models to Perceptual Decision-Making Research
(Trinity College Dublin. School of Psychology. Discipline of Psychology, 2023)Understanding how the brain translates sensory input into action is of key importance to our understanding of all cognitive processes. Computational models utilise behavioural data to offer insight into the latent variables ... -
Exploring the Potential of Multimodal and Multiphasic Brain-Computer Interfaces for Neurorehabilitation
(Trinity College Dublin. School of Psychology. Discipline of Psychology, 2023)Stroke is a significant contributor to disability-adjusted life years in Europe, and its incidence is expected to rise due to demographic changes highlighting the need for effective post-stroke motor rehabilitation. Early ... -
FASTER: Fully Automated Statistical Thresholding for EEG artifact Rejection
(2010)Electroencephalogram (EEG) data are typically contaminated with artifacts (e.g., by eye movements). The effect of artifacts can be attenuated by deleting data with amplitudes over a certain value, for example. Independent ... -
Functional network mapping reveals state-dependent response to IGF-1 treatment in Rett Syndrome
(2020)Rett Syndrome (RTT) is a neurodevelopmental disorder associated with mutations in thegeneMeCP2, which is involved in the development and function of cortical networks. The clinical presentation of RTT is generally severe ... -
Human Neurodegeneration: A Spectral EEG and TMS based Approach in Amyotrophic Lateral Sclerosis
(Trinity College Dublin. School of Medicine. Discipline of Clinical Medicine, 2021)Amyotrophic lateral sclerosis (ALS) is defined by the neurodegeneration of upper and lower motor neurons of the corticospinal tract, resulting in progressive, terminal and incurable decline in movement, speech and swallowing ... -
The Impact of Natural Aging on Perceptual Decision Making
(Trinity College Dublin. School of Psychology. Discipline of Psychology, 2020)The transformation of incoming sensory information into an appropriate motor response is known as perceptual decision making, and constitutes a key computation within the human brain. Mathematical models have proved extremely ...