SAN2016 Blog

NIRS neurofeedback in ADHD

Dr. Ann-Christine Ehlis closes this very interesting symposium with a presentation on NIRS NFB (a haemodynamic imaging method) for ADHD children and adults. 

NIRS has a higher spatial resolution than EEG, good validity and relatively low propensity for movement-related artifacts. Virtual Reality training in a classroom environment is an innovation in the field that can improve the overall intervention success. 

Future projects should focus on the specificity of the training effects as well as optimizations of the training protocol.

Ageing Neuroscience

Morou Niki, presented a different model of interactions compared with cognitively intact older adults, between cognitive control and social cognition in the frontal variant of Frontotemporal Dementia. The hypotheses of this study is the interconnection of Control group abilities to simple and paradoxical sarcasm perception or to negative emotion recognition, would be differentianed in early fvFTD patients compared to cognitively intact older adults.

fMRI NF in children with ADHD

Why neurofeedback? Prof Katya Rubia explains that traditional neuropharamacological interventions have specific limitations (drug abuse anyone?) that NF could address. Both EEG and fMRI NF have been tried with ADHD children each presenting different advantages and disadvantages. Cognitive performance ina ADHD- relevant tasks show improvement with NF treatment that can be directly compared to traditional therapies.

 

 

Ageing Neuroscience

Maria Karagianni, presented the "Insights into affective word processing and geriatric depression through the compination of Event-Related Potentials with Cortical Brain Network Analysis". It was an interesting speech about the way visual emotional stimuli effect cortical ERP activity and brain networks in comparison with healthy elderly and elderly with geriatric depression.

fMRI neurofeeback in PTSD: frontal control networks and enhancement of cognitive reappraisal

Dr. Klaus Mathias deals with issues like the transition from the image to the feedback signal and social feedback. 

Smile acts as a reward and brain activity regulates that smile, while social feedback improves learning. Cognitive reappraisal is an effective strategy for emotion regulation and frequently used in cognitive-behavioral treatment. However, PTSD patients often have difficulties reappraising negative stimuli. Neurofeedback based on real-time functional magnetic resonance imaging (rt-fMRI) enhances cognitive reappraisal and the regulation of amygdala involvement.

Investigating the correlation between crystallized IQ and network metrics in cerebellum using resting-state fMRI

Dr Klados presented the effect of crystalized IQ in cerebellum’s functional network. Small world properties were examined and the concept of the Minimum Spanning Tree was employed in order to overcome graph comparison issues. The presented analysis linked the lower SWN-ness in high IQ females, in relation to low-IQ females and in relation to men, to a more efficient network organization in women, thereby reflecting different hemispheric organization between the two sexes.

Abnormal functional connectivity in progressive supra nuclear palsy and cortico basal syndrome: A resting state fMRI study

Dr. Komal Bharti presented a talk focusing on progressive supranuclear palsy (PSP) and corticobasal syndrome (CBS). They explored any within-network and between-network rsFC abnormalities in PSP and CBS patients in comparison to healthy subjects using Independent Component Analysis (ICA). The presented analysis showed altered functional interaction between core cognitive networks.

Ageing Neuroscience

Vicky Zilidou presented neurophysiological evaluation of interventions targeted on senior citizens. The study showed a comparison between cognitive/physical training and traditional Greek dancing. By measuring the theta/gamma and alpha3/alpha2 ratio, the possibility of future cognitive deterioration due to a non Alzheimer and Alzheimer’s Dementia will be exctracted.

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