ARC CENTRE OF EXCELLENCE FOR INTEGRATIVE BRAIN FUNCTION

Increased functional activity, bottom-up and intrinsic effective connectivity in autism.

R Randeniya, I Vilares, JB Mattingley, MI Garrido

2023-12-01

Sensory perceptual alterations such as sensory sensitivities in autism have been proposed to be caused by differences in sensory o..

Anxiety attenuates learning advantages conferred by statistical stability and induces loss of volatility-attuning in brain activity

Elise GG Rowe, Clare DD Harris, Ilvana Dzafic, Marta II Garrido

2023-02-22

Anxiety can alter an individual's perception of their external sensory environment. Previous studies suggest that anxiety can incr..

Orientation pinwheels in primary visual cortex of a highly visual marsupial

Young Jun Jung, Ali Almasi, Shi H Sun, Molis Yunzab, Shaun L Cloherty, Sebastien H Bauquier, Marilyn Renfree, Hamish Meffin, Michael R Ibbotson

2022-09-30

Primary visual cortices in many mammalian species exhibit modular and periodic orientation preference maps arranged in pinwheel-li..

How Stimulus Statistics Affect the Receptive Fields of Cells in Primary Visual Cortex

Ali Almasi, Shi Hai Sun, Molis Yunzab, Young Jun Jung, Hamish Meffin, Michael R Ibbotson

2022-06-29

We studied the changes that neuronal receptive field (RF) models undergo when the statistics of the stimulus are changed from thos..

Increased context adjustment is associated with auditory sensitivities but not with autistic traits

Randeniya Roshini, Mattingley B Jason, Garrido Marta

2022-05-24

Bayesian models of autism suggest that alterations in context-sensitive prediction error weighting may underpin sensory perceptual..

Neural and computational processes of accelerated perceptual awareness and decisions: A 7T fMRI study

Shivam Kalhan, Jessica McFadyen, Naotsugu Tsuchiya, Marta Garrido

2022-04-25

Rapidly detecting salient information in our environments is critical for survival. Visual processing in subcortical areas like th..

Towards a cross-level understanding of Bayesian inference in the brain

Chin-Hsuan Sophie Lin, Marta Garrido

2022-04-14

Perception emerges from unconscious probabilistic inference, which guides behaviour in our ubiquitously uncertain environment. Bay..

Mechanism underpinning the sharpening of orientation and spatial frequency selectivities in the tree shrew (Tupaia belangeri) primary visual cortex

Yamni S Mohan, Sivaram Viswanathan, Jaikishan Jayakumar, Errol KJ Lloyd, Trichur R Vidyasagar

2022-02-03

Most neurons in the primary visual cortex (V1) of mammals show sharp orientation selectivity and band-pass spatial frequency tunin..

Hippocampus-Prefrontal Coupling Regulates Recognition Memory for Novelty Discrimination

Cong Wang, Teri M Furlong, Peter G Stratton, Conrad CY Lee, Li Xu, Sam Merlin, Chris Nolan, Ehsan Arabzadeh, Roger Marek, Pankaj Sah

2021-11-17

Recognition memory provides the ability to distinguish familiar from novel objects and places, and is important for recording and ..

Brain-predicted age difference is associated with cognitive processing in later-life

Jo Wrigglesworth, Nurathifah Yaacob, Phillip Ward, Robyn L Woods, John McNeil, Elsdon Storey, Gary Egan, Anne Murray, Raj C Shah, Sharna D Jamadar, Ruth Trevaks, Stephanie Ward, Ian H Harding, Joanne Ryan

2021-11-11

Brain age is a neuroimaging-based biomarker of aging. This study examined whether the difference between brain age and chronologic..

Predicting subclinical psychotic-like experiences on a continuum using machine learning

Jeremy A Taylor, Kit Melissa Larsen, Ilvana Dzafic, Marta I Garrido

2021-07-30

Previous studies applying machine learning methods to psychosis have primarily been concerned with the binary classification of ch..

Auditory input enhances somatosensory encoding and tactile goal-directed behavior

L Godenzini, D Alwis, R Guzulaitis, S Honnuraiah, GJ Stuart, LM Palmer

2021-07-23

The capacity of the brain to encode multiple types of sensory input is key to survival. Yet, how neurons integrate information fro..

Determination of Dynamic Brain Connectivity via Spectral Analysis

Peter A Robinson, James A Henderson, Natasha C Gabay, Kevin M Aquino, Tara Babaie-Janvier, Xiao Gao

2021-07-16

Spectral analysis based on neural field theory is used to analyze dynamic connectivity via methods based on the physical eigenmode..

Afferent Connections of Cytoarchitectural Area 6M and Surrounding Cortex in the Marmoset: Putative Homologues of the Supplementary and Pre-supplementary Motor Areas

Sophia Bakola, Kathleen J Burman, Sylwia Bednarek, Jonathan M Chan, Natalia Jermakow, Katrina H Worthy, Piotr Majka, Marcello GP Rosa

2021-07-13

Cortical projections to the caudomedial frontal cortex were studied using retrograde tracers in marmosets. We tested the hypothesi..

Saturated free fatty acids and association with memory formation

Tristan P Wallis, Bharat G Venkatesh, Vinod K Narayana, David Kvaskoff, Alan Ho, Robert K Sullivan, Francois Windels, Pankaj Sah, Frederic A Meunier

2021-06-08

Polyunsaturated free fatty acids (FFAs) such as arachidonic acid, released by phospholipase activity on membrane phospholipids, ha..

Relationships between lognormal distributions of neural properties, activity, criticality, and connectivity

PA Robinson, Xiao Gao, Y Han

2021-04-07

Relationships between convergence of inputs onto neurons, divergence of outputs from them, synaptic strengths, nonlinear firing re..

Analysis of extracellular spike waveforms and associated receptive fields of neurons in cat primary visual cortex

Shi H Sun, Ali Almasi, Molis Yunzab, Syeda Zehra, Damien G Hicks, Tatiana Kameneva, Michael R Ibbotson, Hamish Meffin

2021-03-02

KEY POINTS: Extracellular spikes recorded in the visual cortex (Area 17/18, V1) are commonly classified into either regular-spikin..

Learning receptive field properties of complex cells in V1

Yanbo Lian, Ali Almasi, David B Grayden, Tatiana Kameneva, Anthony N Burkitt, Hamish Meffin

2021-03-01

There are two distinct classes of cells in the primary visual cortex (V1): simple cells and complex cells. One defining feature of..

Histology-Based Average Template of the Marmoset Cortex With Probabilistic Localization of Cytoarchitectural Areas

Piotr Majka, Sylwia Bednarek, Jonathan M Chan, Natalia Jermakow, Cirong Liu, Gabriela Saworska, Katrina H Worthy, Afonso C Silva, Daniel K Wojcik, Marcello GP Rosa

2021-02-01

The rapid adoption of marmosets in neuroscience has created a demand for three dimensional (3D) atlases of the brain of this speci..

Evoked response activity eigenmode analysis in a convoluted cortex via neural field theory

KN Mukta, PA Robinson, JC Pages, NC Gabay, Xiao Gao

2020-12-08

Neural field theory of the corticothalamic system is used to explore evoked response potentials (ERPs) caused by spatially localiz..

Detecting (Un)seen Change: The Neural Underpinnings of (Un)conscious Prediction Errors

Elise G Rowe, Naotsugu Tsuchiya, Marta I Garrido

2020-11-11

Detecting changes in the environment is fundamental for our survival. According to predictive coding theory, detecting these irreg..

Adaptive Surround Modulation of MT Neurons: A Computational Model

Parvin Zarei Eskikand, Tatiana Kameneva, Anthony N Burkitt, David B Grayden, Michael R Ibbotson

2020-10-26

The classical receptive field (CRF) of a spiking visual neuron is defined as the region in the visual field that can generate spik..

State-Dependent Changes in Perception and Coding in the Mouse Somatosensory Cortex

Conrad CY Lee, Ehsan Kheradpezhouh, Mathew E Diamond, Ehsan Arabzadeh

2020-09-29

An animal's behavioral state is reflected in the dynamics of cortical population activity and its capacity to process sensory info..

Multi-dimensional predictions of psychotic symptoms via machine learning

Jeremy A Taylor, Kit M Larsen, Marta I Garrido

2020-09-01

The diagnostic criteria for schizophrenia comprise a diverse range of heterogeneous symptoms. As a result, individuals each presen..

Statistical Learning and Inference Is Impaired in the Nonclinical Continuum of Psychosis

Ilvana Dzafic, Roshini Randeniya, Clare D Harris, Moritz Bammel, Marta Garrido

2020-08-26

Our perceptions result from the brain's ability to make inferences, or predictive models, of sensory information. Recently, it has..

Aberrant connectivity in auditory precision encoding in schizophrenia spectrum disorder and across the continuum of psychotic-like experiences

Kit Melissa Larsen, Ilvana Dzafic, Hayley Darke, Holly Pertile, Olivia Carter, Suresh Sundram, Marta Garrido

2020-08-01

BACKGROUND: The ability to generate a precise internal model of statistical regularities is impaired in schizophrenia. Predictive ..

Global effects of feature -based attention depend on surprise

Cooper A Smout, Marta Garrido, Jason B Mattingley

2020-07-15

Recent studies have shown that prediction and attention can interact under various circumstances, suggesting that the two processe..

Brain compensation during response inhibition in premanifest Huntington's disease

Maria Soloveva, Sharna D Jamadar, Matthew Hughes, Dennis Velakoulis, Govinda Poudel, Nellie Georgiou-Karistianis

2020-06-01

Premanifest Huntington's disease (pre-HD) individuals typically show increased task-related functional magnetic resonance imaging ..

Origins of Functional Organization in the Visual Cortex

Michael Ibbotson, Young Jun Jung

2020-03-03

How are the complex maps for orientation selectivity (OS) created in the primary visual cortex (V1)? Rodents and rabbits have a ra..

Open access resource for cellular-resolution analyses of corticocortical connectivity in the marmoset monkey

Piotr Majka, Shi Bai, Sophia Bakola, Sylwia Bednarek, Jonathan M Chan, Natalia Jermakow, Lauretta Passarelli, David H Reser, Panagiota Theodoni, Katrina H Worthy, Xiao-Jing Wang, Daniel K Wojcik, Partha P Mitra, Marcello GP Rosa

2020-02-28

Understanding the principles of neuronal connectivity requires tools for efficient quantification and visualization of large datas..

Porthole and Stormcloud: Tools for Visualisation of Spatiotemporal M/EEG Statistics

Jeremy A Taylor, Marta Garrido

2020-01-05

Electro- and magneto-encephalography are functional neuroimaging modalities characterised by their ability to quantify dynamic spa..

Brain compensation during visuospatial working memory in premanifest Huntington's disease

Maria V Soloveva, Sharna D Jamadar, Dennis Velakoulis, Govinda Poudel, Nellie Georgiou-Karistianis

2020-01-01

Huntington's disease (HD) is a progressive autosomal dominant disorder characterised by impairment of movement, cognitive decline ..

Comparison of contrast-dependent phase sensitivity in primary visual cortex of mouse, cat and macaque

Molis Yunzab, Shaun L Cloherty, Michael R Ibbotson

2019-10-09

Neurones in the primary visual cortex (V1) are classified into simple and complex types. Simple cells are phase-sensitive, that is..

Sexual Dimorphism of Resting-State Network Connectivity in Healthy Ageing

Sharna D Jamadar, Francesco Sforazzini, Parnesh Raniga, Nicholas J Ferris, Bryan Paton, Michael J Bailey, Amy Brodtmann, Paul A Yates, Geoffrey A Donnan, Stephanie A Ward, Robyn L Woods, Elsdon Storey, John J McNeil, Gary F Egan

2019-10-01

OBJECTIVES: The onset of many illnesses is confounded with age and sex. Increasing age is a risk factor for the development of man..

Auditory white matter pathways are associated with effective connectivity of auditory prediction errors within a fronto-temporal network

Lena KL Oestreich, Roshini Randeniya, Marta I Garrido

2019-07-15

Auditory prediction errors, i.e. the mismatch between predicted, forthcoming auditory sensations and actual sensory input, trigger..

Topographic Organization of the 'Third-Tier' Dorsomedial Visual Cortex in the Macaque

Kostas Hadjidimitrakis, Sophia Bakola, Tristan A Chaplin, Hsin-Hao Yu, Omar Alanazi, Jonathan M Chan, Katrina H Worthy, Marcello GP Rosa

2019-07-03

The boundaries of the visual areas located anterior to V2 in the dorsomedial region of the macaque cortex remain contentious. This..

Large-scale brain modes reorganize between infant sleep states and carry prognostic information for preterms

Anton Tokariev, James A Roberts, Andrew Zalesky, Xuelong Zhao, Sampsa Vanhatalo, Michael Breakspear, Luca Cocchi

2019-06-13

Sleep architecture carries vital information about brain health across the lifespan. In particular, the ability to express distinc..

Neural field theory of evoked response potentials in a spherical brain geometry

KN Mukta, Xiao Gao, PA Robinson

2019-06-12

Evoked response potentials (ERPs) are calculated in spherical and planar geometries using neural field theory of the corticothalam..

Alteration of functional brain architecture in 22q11.2 deletion syndrome - Insights into susceptibility for psychosis

Kit Melissa Larsen, Ilvana Dzafic, Hartwig Roman Siebner, Marta Isabel Garrido

2019-04-15

The 22q11.2 deletion is one of the most common copy number variants in humans. Carriers of the deletion have a markedly increased ..

Synaptic Basis for Contrast-Dependent Shifts in Functional Identity in Mouse V1

Molis Yunzab, Veronica Choi, Hamish Meffin, Shaun L Cloherty, Nicholas J Priebe, Michael R Ibbotson

2019-03-01

A central transformation that occurs within mammalian visual cortex is the change from linear, polarity-sensitive responses to non..

Temporal cueing enhances neuronal and behavioral discrimination performance in rat whisker system

Conrad CY Lee, Colin WG Clifford, Ehsan Aralmadeh

2019-03-01

Since sensory systems operate with a finite quantity of processing resources, an animal would benefit from prioritizing processing..

Contrast-dependent phase sensitivity in area MT of macaque visual cortex

Shaun L Cloherty, Michael R Ibbotson

2019-02-06

In primate visual cortex (V1), about half the neurons are sensitive to the spatial phases of grating stimuli and generate highly m..

Attention promotes the neural encoding of prediction errors

Cooper A Smout, Matthew F Tang, Marta Garrido, Jason B Mattingley

2019-02-01

The encoding of sensory information in the human brain is thought to be optimised by two principal processes: 'prediction' uses st..

White matter connectivity reductions in the pre-clinical continuum of psychosis: A connectome study

Lena KL Oestreich, Roshini Randeniya, Marta Garrido

2019-02-01

Widespread white matter connectivity disruptions have commonly been reported in schizophrenia. However, it is questionable whether..

An afferent white matter pathway from the pulvinar to the amygdala facilitates fear recognition

Jessica McFadyen, Jason B Mattingley, Marta I Garrido

2019-01-16

UNLABELLED: Our ability to rapidly detect threats is thought to be subserved by a subcortical pathway that quickly conveys visual ..

Unidirectional monosynaptic connections from auditory areas to the primary visual cortex in the marmoset monkey

Piotr Majka, Marcello GP Rosa, Shi Bai, Jonathan M Chan, Bing-Xing Huo, Natalia Jermakow, Meng K Lin, Yeonsook S Takahashi, Ianina H Wolkowicz, Katrina H Worthy, Ramesh Rajan, David H Reser, Daniel K Wojcik, Hideyuki Okano, Partha P Mitra

2019-01-01

Until the late twentieth century, it was believed that different sensory modalities were processed by largely independent pathways..

From simultaneous to synergistic MR-PET brain imaging: A review of hybrid MR-PET imaging methodologies

Zhaolin Chen, Sharna D Jamadar, Shenpeng Li, Francesco Sforazzini, Jakub Baran, Nicholas Ferris, Nadim Jon Shah, Gary F Egan

2018-12-01

Simultaneous Magnetic Resonance Imaging (MRI) and Positron Emission Tomography (PET) scanning is a recent major development in bio..

Irregularly timed electrical pulse reduce adaptation of retinal ganglion cells

A Soto-Breceda, T Kameneva, H Meffin, M Maturana, MR Ibbotson

2018-10-01

OBJECTIVE: Retinal prostheses aim to provide visual percepts to blind people affected by diseases caused by photoreceptor degenera..

In vitro assessment of the differences in retinal ganglion cell responses to intra- and extracellular electrical stimulation

Rebecca Kotsakidis, Hamish Meffin, Michael R Ibbotson, Tatiana Kameneva

2018-08-01

OBJECTIVE: To compare responses of retinal ganglion cells (RGCs) to intracellular and extracellular electrical stimulation of vary..

A biologically-based computational model of visual cortex that overcomes the X-junction illusion

Parvin Zarei Eskikand, Tatiana Kameneva, Michael R Ibbotson, Anthony N Burkitt, David B Grayden

2018-06-01

The end-points of a moving bar (intrinsic terminators) contain unambiguous information that can be used to extract the bar's corre..

Bayesian Mapping Reveals That Attention Boosts Neural Responses to Predicted and Unpredicted Stimuli

Marta I Garrido, Elise G Rowe, Veronika Halasz, Jason B Mattingley

2018-05-01

Predictive coding posits that the human brain continually monitors the environment for regularities and detects inconsistencies. I..

Self-Organized Nanostructure Modified Microelectrode for Sensitive Electrochemical Glutamate Detection in Stem Cells-Derived Brain Organoids

Babak Nasr, Rachael Chatterton, Jason Hsien Ming Yong, Pegah Jamshidi, Giovanna Marisa D'Abaco, Andrew Robin Bjorksten, Omid Kavehei, Gursharan Chana, Mirella Dottori, Efstratios Skafidas

2018-03-01

Neurons release neurotransmitters such as glutamate to communicate with each other and to coordinate brain functioning. As increas..

Transcranial magnetic stimulation in obsessive-compulsive disorder: A focus on network mechanisms and state dependence

Luca Cocchi, Andrew Zalesky, Zoie Nott, Genevieve Whybird, Paul B Fitzgerald, Michael Breakspear

2018-01-01

BACKGROUND: Transcranial magnetic stimulation (TMS) is a non-invasive brain stimulation technique that has shown promise as an adj..

Long-term sensorimotor adaptation in the ocular following system of primates

Markus A Hietanen, Nicholas SC Price, Shaun L Cloherty, Kostas Hadjidimitrakis, Michael R Ibbotson

2017-12-04

The sudden movement of a wide-field image leads to a reflexive eye tracking response referred to as short-latency ocular following..

A Silk Fibroin Bio-Transient Solution Processable Memristor

Jason Yong, Basem Hassan, You Liang, Kumaravelu Ganesan, Ranjith Rajasekharan, Robin Evans, Gary Egan, Omid Kavehei, Jingliang Li, Gursharan Chana, Babak Nasr, Efstratios Skafidas

2017-11-07

Today's electronic devices are fabricated using highly toxic materials and processes which limits their applications in environmen..

Neural basis of forward flight control and landing in honeybees

MR Ibbotson, Y-S Hung, H Meffin, N Boeddeker, MV Srinivasan

2017-11-06

The impressive repertoire of honeybee visually guided behaviors, and their ability to learn has made them an important tool for el..

Criticality in the brain: A synthesis of neurobiology, models and cognition

Luca Cocchi, Leonardo L Gollo, Andrew Zalesky, Michael Breakspear

2017-11-01

Cognitive function requires the coordination of neural activity across many scales, from neurons and circuits to large-scale netwo..

Occipital GABA levels in older adults and their relationship to visual perceptual suppression

Kabilan Pitchaimuthu, Qi-zhu Wu, Olivia Carter, Bao N Nguyen, Sinyeob Ahn, Gary F Egan, Allison M McKendrick

2017-10-27

Several studies have attributed certain visual perceptual alterations in older adults to a likely decrease in GABA (Gamma Aminobut..

Reconfiguration of Brain Network Architectures between Resting-State and Complexity-Dependent Cognitive Reasoning

Luke J Hearne, Luca Cocchi, Andrew Zalesky, Jason B Mattingley

2017-08-30

Our capacity for higher cognitive reasoning has a measurable limit. This limit is thought to arise from the brain's capacity to fl..

Neural Decoding of Visual Stimuli Varies with Fluctuations in Global Network Efficiency

Luca Cocchi, Zhengyi Yang, Andrew Zalesky, Johannes Stelzer, Luke J Hearne, Leonardo L Gollo, Jason B Mattingley

2017-06-01

Functional magnetic resonance imaging (fMRI) studies have shown that neural activity fluctuates spontaneously between different st..

A Rapid Subcortical Amygdala Route for Faces Irrespective of Spatial Frequency and Emotion

Jessica McFadyen, Martial Mermillod, Jason B Mattingley, Veronika Halasz, Marta I Garrido

2017-04-05

There is significant controversy over the existence and function of a direct subcortical visual pathway to the amygdala. It is tho..

Connectome sensitivity or specificity: which is more important?

Andrew Zalesky, Alex Fornito, Luca Cocchi, Leonardo L Gollo, Martijn P van den Heuvel, Michael Breakspear

2016-11-15

Connectomes with high sensitivity and high specificity are unattainable with current axonal fiber reconstruction methods, particul..

A hierarchy of timescales explains distinct effects of local inhibition of primary visxc ual cortex and frontal eye fields

Luca Cocchi, Martin V Sale, Leonardo L Gollo, Peter T Bell, Vinh T Nguyen, Andrew Zalesky, Michael Breakspear, Jason B Mattingley

2016-09-06

Within the primate visual system, areas at lower levels of the cortical hierarchy process basic visual features, whereas those at ..

Intrinsic Connectivity Provides the Baseline Framework for Variability in Motor Performance: A Multivariate Fusion Analysis of Low- and High-Frequency Resting-State Oscillations and Antisaccade Performance

Sharna D Jamadar, Gary F Egan, Vince D Calhoun, Beth Johnson, Joanne Fielding

2016-07-01

Intrinsic brain activity provides the functional framework for the brain's full repertoire of behavioral responses; that is, a com..

Sensory experience modifies feature map relationships in visual cortex

Shaun L Cloherty, Nicholas J Hughes, Markus A Hietanen, Partha S Bhagavatula, Geoffrey J Goodhill, Michael R Ibbotson

2016-06-16

The extent to which brain structure is influenced by sensory input during development is a critical but controversial question. A ..

Sensory Prioritization in Rats: Behavioral Performance and Neuronal Correlates

Conrad CY Lee, Mathew E Diamond, Ehsan Arabzadeh

2016-03-16

UNLABELLED: Operating with some finite quantity of processing resources, an animal would benefit from prioritizing the sensory mod..

Sensory Deviancy Detection Measured Directly Within the Human Nucleus Accumbens

Stefan Duerschmid, Tino Zaehle, Hermann Hinrichs, Hans-Jochen Heinze, Juergen Voges, Marta I Garrido, Raymond J Dolan, Robert T Knight

2016-03-01

Rapid changes in the environment evoke a comparison between expectancy and actual outcome to inform optimal subsequent behavior. T..

The contribution of geometry to the human connectome

James A Roberts, Alistair Perry, Anton R Lord, Gloria Roberts, Philip B Mitchell, Robert E Smith, Fernando Calamante, Michael Breakspear

2016-01-01

The human connectome is a topologically complex, spatially embedded network. While its topological properties have been richly cha..

Empirical Bayes for Group (DCM) Studies: A Reproducibility Study

Vladimir Litvak, Marta Garrido, Peter Zeidman, Karl Friston

2015-12-22

This technical note addresses some key reproducibility issues in the dynamic causal modelling of group studies of event related po..

Spatial phase sensitivity of complex cells in primary visual cortex depends on stimulus contrast

H Meffin, MA Hietanen, SL Cloherty, MR Ibbotson

2015-12-01

Neurons in primary visual cortex are classified as simple, which are phase sensitive, or complex, which are significantly less pha..

Ventromedial prefrontal cortex drives hippocampal theta oscillations induced by mismatch computations

Marta I Garrido, Gareth R Barnes, Dharshan Kumaran, Eleanor A Maguire, Raymond J Dolan

2015-10-15

Detecting environmental change is fundamental for adaptive behavior in an uncertain world. Previous work indicates the hippocampus..

Imaging human brain networks to improve the clinical efficacy of non-invasive brain stimulation

Martin V Sale, Jason B Mattingley, Andrew Zalesky, Luca Cocchi

2015-10-01

The flexible integration of segregated neural processes is essential to healthy brain function. Advances in neuroimaging technique..

Saccade-induced image motion cannot account for post-saccadic enhancement of visual processing in primate MST

Shaun L Cloherty, Nathan A Crowder, Michael J Mustari, Michael R Ibbotson

2015-09-01

Primates use saccadic eye movements to make gaze changes. In many visual areas, including the dorsal medial superior temporal area..

Interactions between default mode and control networks as a function of increasing cognitive reasoning complexity

Luke Hearne, Luca Cocchi, Andrew Zalesky, Jason B Mattingley

2015-07-01

Successful performance of challenging cognitive tasks depends on a consistent functional segregation of activity within the defaul..

Time-Varying Effective Connectivity during Visual Object Naming as a Function of Semantic Demands

Claudia Poch, Marta I Garrido, Jose Manuel Igoa, Mercedes Belinchon, Irene Garcia-Morales, Pablo Campo

2015-06-10

Accumulating evidence suggests that visual object understanding involves a rapid feedforward sweep, after which subsequent recurre..

Development of Effective Connectivity in the Core Network for Face Perception

Wei He, Marta I Garrido, Paul F Sowman, Jon Brock, Blake W Johnson

2015-06-01

This study measured effective connectivity within the core face network in young children using a paediatric magnetoencephalograph..

Dissociable effects of local inhibitory and excitatory theta-burst stimulation on large-scale brain dynamics

Luca Cocchi, Martin V Sale, Anton Lord, Andrew Zalesky, Michael Breakspear, Jason B Mattingley

2015-05-01

Normal brain function depends on a dynamic balance between local specialization and large-scale integration. It remains unclear, h..

Mapping somatosensory connectivity in adult mice using diffusion MRI tractography and super-resolution track density imaging

Kay Richards, Fernando Calamante, Jacques-Donald Tournier, Nyoman D Kurniawan, Farnoosh Sadeghian, Alexander R Retchford, Gabriel Davis Jones, Christopher A Reid, David C Reutens, Roger Ordidge, Alan Connelly, Steven Petrou

2014-11-15

In this study we combined ultra-high field diffusion MRI fiber tracking and super-resolution track density imaging (TDI) to map th..

Temporal response properties of koniocellular (blue-on and blue-off) cells in marmoset lateral geniculate nucleus

ANJ Pietersen, SK Cheong, SG Solomon, C Tailby, PR Martin

2014-09-15

Visual perception requires integrating signals arriving at different times from parallel visual streams. For example, signals carr..

Retinal ganglion cells electrophysiology: the effect of cell morphology on impulse waveform

Matias I Maturana, Raymond Wong, Shaun L Cloherty, Michael R Ibbotson, Alex E Hadjinicolaou, David B Grayden, Anthony N Burkitt, Hamish Meffin, Brendan J O'Brien, Tatiana Kameneva

2013-01-01

There are 16 morphologically defined classes of rats retinal ganglion cells (RGCs). Using computer simulation of a realistic anato..