World Scientific Lecture Notes in Complex Systems by Stefano Boccaletti

Thu, 06/24/2010 - 21:35 — bofis

Summary: Networked systems are all around us. The accumulated evidence of systems as complex as a cell cannot be fully understood by studying only their isolated constituents, giving rise to a new area of interest in research -- the study of complex networks. In a broad sense, biological networks have been one of the most studied networks, and the field has benefited from many important contributions. By understanding and modeling the structure of a biological network, a better perception of its dynamical and functional behavior is to be expected.

Thatcher's reply on Gamma Oscillation: Master or Slave

Tue, 06/22/2010 - 19:12 — bofis

In Brain Topopgraphy the EEG Gamma frequencies (30 – 80 Hz) are given a whole issue in Vol. 22 No. 1. This issue shows that there are serious artifact contamination problems in the Gamma frequency due to muscles and saccades of the eyes. These studies confirm that Gamma frequencies > 30 Hz are not technically easy because of the low pass filter characteristics of the dura and skull and muscle artifact is larger amplitude than EEG gamma.

Bob Thatcher's links on Attention and Memory

Tue, 06/22/2010 - 19:11 — bofis

[Bob] encourages all those interested in how memory and attention are intertwined and how pacemakers and long term potentiation (LTP) are involved in memory and attention to read the review by Vinogradova. Download and read the paper on our website "Hippocampus as Comparator: …." by Olga S. Vinogradova (1929-2001) at:
http://www.appliedneuroscience.com/Hippocampus%20as%20a%20comparator.pdf
or article #44 at: http://www.appliedneuroscience.com/Articles.htm

Neurofeedback treatment in autism. Preliminary findings in behavioral, cognitive, and neurophysiological functioning by Kouijzer

Tue, 06/22/2010 - 19:08 — bofis

Abstract: Effects of neurofeedback treatment were investigated in children with autism spectrum disorders (ASD). Sixty percent of the participants in the treatment group successfully reduced excessive theta power during neurofeedback treatment. Reduction of theta power was confirmed by pre- and post-QEEG measures. Parents of participants in the neurofeedback treatment group reported significant improvements in reciprocal social interactions and communication skills, relative to the parents of the control group.

Human memory strength is predicted by theta-frequency phase-locking of single neurons by Rutishauser et al

Tue, 06/22/2010 - 19:06 — bofis

Abstract: Learning from novel experiences is a major task of the central nervous system. In mammals, the medial temporal lobe is crucial for this rapid form of learning1. The modification of synapses and neuronal circuits through plasticity is thought to underlie memory formation2. The induction of synaptic plasticity is favoured by coordinated action-potential timing across populations of neurons3. Such coordinated activity of neural populations can give rise to oscillations of different frequencies, recorded in local field potentials.