Search results for: Robert J. Barry

Items from 1 to 20 out of 208 results

article

Effects of the cardiac cycle on auditory processing: A preregistered study on mismatch negativity

Lingjun Li, Kai Ishida, Keita Mizuhara, Robert J. Barry, more

The systolic and diastolic phases of the cardiac cycle are known to affect perception and cognition differently. Higher order processing tends to be facilitated at systole, whereas sensory processing of external stimuli tends to be impaired at systole compared to diastole. The current study aims to examine whether the cardiac cycle affects auditory deviance detection, as reflected in the mismatch...

article

Components in the P300: Don’t forget the Novelty P3!

Robert J. Barry, Genevieve Z. Steiner, Frances M. De Blasio, Jack S. Fogarty, more

Psychophysiology > 57 > 7 > n/a - n/a

This study investigated stimulus‐response patterns of temporal principal components analysis (PCA)–derived event‐related potential (ERP) components in a classical auditory habituation paradigm with long interstimulus intervals. The skin conductance response (SCR) was included as the “gold standard” model of the Orienting Reflex. Thirty participants were presented with a single series of 10 identical...

article

Auditory stimulus‐ and response‐locked ERP components and behavior

Jack S. Fogarty, Robert J. Barry, Genevieve Z. Steiner

Psychophysiology > 57 > 5 > n/a - n/a

To clarify the functional significance of Go event‐related potential (ERP) components, this study aimed to explore stimulus‐ and response‐locked ERP averaging effects on the series of ERP components elicited during an auditory Go/NoGo task. Go stimulus‐ and response‐locked ERP data from 126 healthy young adults (M_age = 20.3, SD = 2.8 years, 83 female) were decomposed using temporal principal components...

article

Electroencephalography theta/beta ratio covaries with mind wandering and functional connectivity in the executive control network

Dana Son, Mischa Rover, Frances M. De Blasio, Willem Does, more

Annals of the New York Academy of Sciences > 1452 > 1 > 52 - 64

The ratio between frontal resting‐state electroencephalography (EEG) theta and beta frequency power (theta/beta ratio, TBR) is negatively related to cognitive control. It is unknown which psychological processes during resting state account for this. Increased theta and reduced beta power are observed during mind wandering (MW), and MW is related to decreased connectivity in the executive control...

article

The value of sea urchin, Lytechinus variegatus, egesta consumed by shrimp, Litopenaeus vannamei

Karen E. Jensen, J. Christopher Taylor, Robert J. Barry, Louis R. D'Abramo, more

Journal of the World Aquaculture Society > 50 > 3 > 614 - 621

Sea urchins produce high‐energy, membrane‐bound fecal pellets that contain residual nutrients and large quantities of microbiota. These egesta are readily consumed by the shrimp, Litopenaeus vannamei. Egesta of the sea urchin, Lytechinus variegatus, were evaluated as a feed supplement or total replacement for a commercial shrimp diet. Shrimp were stocked at 0.49 g ± 0.06 g initial body weight and...

article

Under-utilisation of reproducible, child appropriate or patient reported outcome measures in childhood uveitis interventional research

Ameenat L. Solebo, Robert J. Barry, Pearse A. Keane, Jugnoo S. Rahi, more

Orphanet Journal of Rare Diseases > 2019 > 14 > 1 > 1-11

Background Childhood uveitis is a collection of chronic rare inflammatory eye disorders which result in visual loss in at least one eye of one fifth of affected children. Despite the introduction of novel systemic immunochemotherapies, it remains a blinding disease.We have undertaken a systematic review of outcome measures used in interventional trials of children with, or at risk of uveitis, in order...

article

Using principal components analysis to examine resting state EEG in relation to task performance

Diana Karamacoska, Robert J. Barry, Genevieve Z. Steiner

Psychophysiology > 56 > 5 > n/a - n/a

Brain dynamics research has highlighted the significance of the ongoing EEG in ERP genesis and cognitive functioning. Few studies, however, have assessed the contributions of the intrinsic resting state EEG to these stimulus‐response processes and behavioral outcomes. Principal components analysis (PCA) has increasingly been used to obtain more objective, data‐driven estimates of the EEG and ERPs...

article

Caffeine affects children’s ERPs and performance in an equiprobable go/no‐go task: Testing a processing schema

Robert J. Barry, Frances M. De Blasio, Jack S. Fogarty

Psychophysiology > 56 > 5 > n/a - n/a

Caffeine’s stimulant properties were used to test a proposed processing schema for children’s processing stages in the equiprobable auditory go/no‐go task. Active control‐related ERP components were hypothesized to be differentially enhanced by caffeine. Caffeine (80 mg) was administered in a counterbalanced, randomized, double‐blind, placebo‐controlled, cross‐over study of 24 children, aged 8–12 years...

article

Sequential processing in the classic oddball task: ERP components, probability, and behavior

Jack S. Fogarty, Robert J. Barry, Genevieve Z. Steiner

Psychophysiology > 56 > 3 > n/a - n/a

This study compared the ERP components and behavior associated with the auditory equiprobable and classic oddball tasks, to relate the cognitive processing stages in those paradigms and continue the development of the sequential processing schema. Target and nontarget ERP data were acquired from 66 healthy young adults (M_age = 20.1, SD = 2.4 years, 14 male) who completed both equiprobable (target...

article

The EEG Theta/Beta Ratio: A marker of Arousal or Cognitive Processing Capacity?

Adam R. Clarke, Robert J. Barry, Diana Karamacoska, Stuart J. Johnstone

Applied Psychophysiology and Biofeedback > 2019 > 44 > 2 > 123-129

Attention-Deficit/Hyperactivity Disorder (AD/HD) is the most common psychiatric disorder of childhood and has been extensively researched using EEG technology. Within this literature, one of the most widely examined measures has been the theta/beta ratio. The theta/beta ratio was initially hypothesised to represent the arousal mechanism. However, subsequent research has shown this to be inaccurate...

article

Time Effects on Resting EEG in Children With/Without AD/HD

Da-Wei Zhang, Stuart J. Johnstone, Hui Li, Robert J. Barry, more

Brain Topography > 2019 > 32 > 2 > 286-294

In this study we extend on behavioural evidence to examine the effect of time on EEG measures related to arousal and emotion/motivation in children with/without AD/HD. Thirty children with AD/HD and 30 age- and sex-matched controls participated. EEG was recorded during an eyes-closed resting condition and divided into three 2.5 min blocks after pre-processing. Time effects for absolute and relative...

article

ERP components and behavior in the auditory equiprobable go/no‐go task: Inhibition in young adults

Jack S. Fogarty, Robert J. Barry, Frances M. De Blasio, Genevieve Z. Steiner

Psychophysiology > 55 > 7 > n/a - n/a

Previous research suggests that young adults do not need active and effortful inhibition to successfully complete the auditory equiprobable go/no‐go task, a view that was incorporated into Barry and De Blasio's sequential processing schema for this task. However, recent evidence in children suggests that view could be incorrect. The present research aims to clarify the functionality of the N2 and...

article

EEG frequency PCA in EEG‐ERP dynamics

Robert J. Barry, Frances M. De Blasio

Psychophysiology > 55 > 5 > n/a - n/a

Principal components analysis (PCA) has long been used to decompose the ERP into components, and these mathematical entities are increasingly accepted as meaningful and useful representatives of the electrophysiological components constituting the ERP. A similar expansion appears to be beginning in regard to decomposition of the EEG amplitude spectrum into frequency components via frequency PCA. However,...

article

A processing schema for children in the auditory equiprobable Go/NoGo task: ERP components and behaviour

Robert J. Barry, Frances M. De Blasio, Jack S. Fogarty

International Journal of Psychophysiology > 2018 > 123 > C > 74-79

A sequential processing model for adults in the auditory equiprobable Go/NoGo task has been developed in recent years. This used temporal principal components analysis (PCA) to decompose Go/NoGo event related potential (ERP) data into components that mark stages of perceptual and cognitive processing. The model has been found useful in frameworking several studies in young and older adults, and in...

article

Reactivity of alpha rhythms to eyes opening (the Berger effect) during menstrual cycle phases

Olga M. Bazanova, Ekaterina D. Nikolenko, Robert J. Barry

International Journal of Psychophysiology > 2017 > 122 > C > 56-64

The impact of the menstrual cycle on the alpha EEG reactivity to eyes opening (Berger effect) was studied in relation to hormonal and EMG indices. Repeated measurements of salivary progesterone and cortisol, forehead EMG, and EEG alpha-activity indices in 76 healthy women aged 18–27 were obtained in resting eyes closed (1min) and eyes open (30s) conditions. Ten recording sessions occurred, at 2–3day...

article

Statistical data analyses for clinical neurophysiology

Mark Stecker, Patrizio Pasqualetti, Robert J. Barry, Zafiris J. Daskalakis, more

Clinical Neurophysiology > 2017 > 128 > 10 > 1837-1838

article

Atypical interference control in children with AD/HD with elevated theta/beta ratio

Da-Wei Zhang, Steven Roodenrys, Hui Li, Robert J. Barry, more

Biological Psychology > 2017 > 128 > C > 82-88

The theta/beta ratio (TBR) is a major area of interest within electroencephalogram (EEG) research in AD/HD. While researchers suggest a prognostic role for TBR in AD/HD, its relationship to behavior remains uncertain. Recent evidence suggests that elevated TBR in AD/HD may be related to atypical inhibition, particularly at an attentional level. This study aimed to examine the performance on three...

article

An update on the use of biologic therapies in the management of uveitis in Behçet’s disease: a comprehensive review

Thomas W. McNally, Erika M. Damato, Philip I. Murray, Alastair K. Denniston, more

Orphanet Journal of Rare Diseases > 2017 > 12 > 1 > 1-12

ᅟ Behçet’s disease (BD) is a systemic vasculitis characterised by a relapsing remitting course, affecting multiple organ systems. In the eye, it is a cause of potentially blinding inflammation in the form of uveitis. Management of uveitis in BD often requires the use of systemic immunosuppression, in order to reduce disease activity and prevent accumulation of irreversible damage. Whilst corticosteroids...

article

Significance and Novelty effects in single-trial ERP components and autonomic responses

Brett MacDonald, Robert J. Barry

International Journal of Psychophysiology > 2017 > 117 > C > 48-64

The phasic orienting reflex (OR) was investigated in two counterbalanced blocks of an auditory dishabituation paradigm differing in stimulus Significance (operationalised as tone counting). Twelve tones were presented at very long, randomly-varying interstimulus intervals (ISIs). Novelty and Significance were varied within subjects. Stimulus-response patterns were assessed to find ERP matches for...

article

Resting state intrinsic EEG impacts on go stimulus‐response processes

Diana Karamacoska, Robert J. Barry, Genevieve Z. Steiner

Psychophysiology > 54 > 6 > 894 - 903

Neuropsychological research and practice rely on cognitive task performance measures as indicators of brain functioning. The neural activity underlying stimulus‐response processes can be assessed with ERPs, but the relations between these cognitive processes and the brain's intrinsic resting state EEG activity are less understood. This study focused on the neurocognitive functioning of 20 healthy...

Publication date

Last year (1)
Last 3 years (1)

Close

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

From:

To:
Set your own date range

INFONA - science communication portal

Search results for: Robert J. Barry

Effects of the cardiac cycle on auditory processing: A preregistered study on mismatch negativity

Components in the P300: Don’t forget the Novelty P3!

Auditory stimulus‐ and response‐locked ERP components and behavior

Electroencephalography theta/beta ratio covaries with mind wandering and functional connectivity in the executive control network

The value of sea urchin, Lytechinus variegatus, egesta consumed by shrimp, Litopenaeus vannamei

Under-utilisation of reproducible, child appropriate or patient reported outcome measures in childhood uveitis interventional research

Using principal components analysis to examine resting state EEG in relation to task performance

Caffeine affects children’s ERPs and performance in an equiprobable go/no‐go task: Testing a processing schema

Sequential processing in the classic oddball task: ERP components, probability, and behavior

The EEG Theta/Beta Ratio: A marker of Arousal or Cognitive Processing Capacity?

Time Effects on Resting EEG in Children With/Without AD/HD

ERP components and behavior in the auditory equiprobable go/no‐go task: Inhibition in young adults

EEG frequency PCA in EEG‐ERP dynamics

A processing schema for children in the auditory equiprobable Go/NoGo task: ERP components and behaviour

Reactivity of alpha rhythms to eyes opening (the Berger effect) during menstrual cycle phases

Statistical data analyses for clinical neurophysiology

Atypical interference control in children with AD/HD with elevated theta/beta ratio

An update on the use of biologic therapies in the management of uveitis in Behçet’s disease: a comprehensive review

Significance and Novelty effects in single-trial ERP components and autonomic responses

Resting state intrinsic EEG impacts on go stimulus‐response processes

Filter options

Publication date

Content availability

Keywords

Data set

Journal

INFONA - science communication portal

Search results for: Robert J. Barry

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Content availability

Keywords

Data set

Journal

Reporting an error / abuse

Sending the report failed

Accessibility options