Upcoming Events

2nd SINAPSE Image Analysis meeting Jun 20, 2019 09:00 AM - 05:30 PM — Lecture Theatre 2, Dalhousie Building, University of Dundee
2019 SINAPSE ASM Jun 21, 2019 09:30 AM - 05:00 PM — Apex City Quay Hotel, Dundee
2nd International Conference on Medical Imaging with Deep Learning Jul 08, 2019 - Jul 10, 2019 — ICL South Kensington Campus, London
4th International Workshop on Image Processing Techniques and Applications Jul 22, 2019 - Jul 23, 2019 — Centre for Mathematical Imaging Techniques (CMIT), University of Liverpool, England
Medical Image Understanding and Analysis Conference 2019 Jul 24, 2019 - Jul 26, 2019 — University of Liverpool, England

People


Your search for Keyword: 'Episodic memory' returned 10 Result(s)



Miss Courtney Aitken


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Miss Georgia Alexandrou

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Dr Simon R. Cox


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Professor David Donaldson

I am a cognitive neuroscientist working in the field of memory. I am director of the Psychological Imaging Laboratory at the University of Stirling, a brain imaging facility that hosts three 64-channel EEG recording suites. My research focuses on the use of Event-Related Potentials (averaged brain activity, derived from EEG) as a tool for investigating cognitive functions. My primary interest lies in human episodic memory (everyday memory for one’s own personal experience), investigating the functional and neural processes that allow episodic memory to operate (or not, as the case may be). I am also interested in the way in which, in normal function, episodic memory interacts with other forms of memory, particularly semantic memory (memory for knowledge and facts about the world) and implicit memory (unconscious memory that occurs without any awareness of remembering). More broadly I am also keen to collaborate with researchers interested in other cognitive abilities, such as cognitive control, attention and language, using my knowledge of neuroimaging methods to try and identify and dissociate the basic processes that support these complex cognitive abilities. Please see: www.pil.stir.ac.uk and www.researcherid.com/rid/A-5249-2009

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Mrs Judith Jackson


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Dr William McGeown

My research is mainly focused on investigating the cognitive and neural correlates of a range of neuropsychiatric symptoms (e.g., delusions, sleep disorder, depression, apathy).

I am interested in improving the diagnosis/detection of Alzheimer’s disease and other types of dementia (especially in the earliest stages) through customised assessment methods or through the use of multivariate markers.  Variants of these markers could also be used to stratify patients or as outcome measures for clinical drug trials.  Relatedly, I have interests in developing methods to speed drug development.

I have projects underway to develop serum blood-based biomarkers for the dementias (in combination with other methods), to investigate the diagnostic utility of customised neuropsychological tests (and analysis methods), and in the near future hope to begin a project that will utilise electrophysiological methods.

I have an additional research line that focuses on understanding the neural bases of hypnosis and suggestibility. By targeting individual differences suggestion can be used to study elements of psychosis, changes in agency, and other interesting psychological and behavioural phenomena.

Within my research I use structural magnetic resonance imaging techniques (voxel-based morphometry and cortical thickness assessment), functional magnetic resonance imaging (brain activity and connectivity analyses), electrophysiological methods, and neuropsychological assessment.

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Dr Alexa Morcom

Memory, ageing, fMRI, EEG, ERPs

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Dr. Carlos Mugruza-Vassallo

Description of PhD:

Fox et al. (Fox et al., 2005)  hypothesize that a dorsal ‘goal-driven’ attention network controls environmentally directed processes (perception and action) and a ‘default network’ controls internally directed processes (memory and introspection). Within this model it was hypothesised that a ventral ‘stimulus-driven’ network facilitates reorientation in goal driven attention as well as between internally and externally directed processing modes. We have demonstrated abnormal patterns of brain activity in both the goal-driven and stimulus driven networks in individuals with a history of mild concussion (Potter et al., 2001) and in patients diagnosed with schizophrenia (Potter et al., 2008). These abnormalities may result from reduced effectiveness of frontal control caused by diffuse neurotransmitter imbalances (Rolls et al., 2008). The research extended our previous work by providing a better understanding of the role of the stimulus-driven system in switching between goal-driven and default processing modes (Mugruza-Vassallo, 2015 http://discovery.dundee.ac.uk/portal/files/8267183/CAR_FE_PhD2015_VIVA.pdf ).

 

Cognitive Computing and Neuroscience Group at UNTELS

Members:

Carlos Andrés Mugruza Vassallo -

Itamar Franco Salazar Reque - (Tesis en arbitraje). Evaluación de técnicas del problema inverso para estudio del número de señales de electroencefalograma para mecanismos cognitivos. Postgrado en Procesamiento Digital de Señales. Universidad Nacional de Ingeniería.

Yamina Andrade Huaman - “Estudio del tiempo de reacción ante un evento simulado de sismo en una adaptación de videojuego 2d para la UNTELS”. Programa de Graduación de la EAP Ing. Electrónica y Telecomunicaciones-UNTELS

Fredrich Huamani Atao - ““Diseño, implementación y evaluación de un experimento visual 2d en computación cognitiva en la UNTELS”. Programa de Graduación de la EAP Ing. Electrónica y Telecomunicaciones-UNTELS

Carlos Escobar Ulloa -

Donny Hanco -

Luz Elena Collado Arapa -

Edward Ventura Barrientos

 

Collaboration and Aims: Carlos Mugruza is working between Computing and Cognitive Neuroscience. In the last years he has worked with EEG and fMRI, his experiments are between oddball paradigms, Go-NoGo, 3D and augmented reality.

Since 2013, Carlos Mugruza and Douglas Potter continued the analysis of data between the University of Dundee and the Cognitive Neuroscience Group in Peru. Therefore the aims are:

- To better characterise the function of the stimulus-driven system by determining the effects of task load and distractor contingency on  the temporal relationships between the components of the stimulus-driven system.

- To better characterise the function of the stimulus-driven system by inducing more explicit switching and maintenance of processing modes.

 

Experimental Methods: Combine fMRI and EEG to visualise selective activation or suppression of posterior and anterior components of the ‘stimulus-driven’ control system while participants perform a number decision paradigm in which the temporal and spatial relationship of goal relevant and distractor stimuli are systematically manipulated. Basically EEG signals are modeled as

EEG = β0 + ∑ βiSi + β3A3 + Error

This equation considers 2 categorical variables as regressors.

 

Theoretical Methods: An information theory framework is being used. Simulation of the information of the auditory parity experiment has shown around 300 ms CTOA a saddle indentation in the curve of the information measure based on the states of the incoming signal.


Expected Outcomes: The development of optimised, inexpensive (EEG), measures of cognitive control for use assessment attention functions. Two specific use are in neuromarketing and in the pharmacological efficacy in patients diagnosed with schizophrenia, depression and mild cognitive impairment.

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Dr Laura Pidgeon


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Dr Mark van Rossum


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