Bölüm & Birim & Kişi
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Browsing Bölüm & Birim & Kişi by Publisher "Anka Publisher, 116-11 Sok No.10 K 2 D 2, Bornova, Izmir 35050, Turkey"
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Publication A Proposal to Extend Brodmann's Areas Concept to a New Model(Anka Publisher, 116-11 Sok No.10 K 2 D 2, Bornova, Izmir 35050, Turkey, 2014) Düzgün, Aysel; Güntekin, Bahar; BAŞAR, EROL; 142226; 204666Since the beginning of the last century, the localization of brain function is presented by Brodmann areas, or maps that are a result of anatomic organization. They are used in order to give a global idea of cortical structures for given sensory cognitive functions. In the last decades, the analysis of brain oscillations gained high importance for the correlation of brain functions. Moreover, the use of the spectral connectivity provides information on dynamic connectivity between various structures. Beside this, according to (Luria, 1966), brain responses have dynamic features and structural localization is almost impossible. According to these uses, brain functions are very difficult to localize and need joint analysis of oscillation and event related coherences. In the present report, a model called "CLAIR" is described to extend and possibly to replace the concept of the Brodmann areas. To design a perfect functioning CLAIR model requires years; however, the beginning step is provided in the present report.Publication An essay on Darwin's theory and Bergson's creative evolution in the era of neuroQuantology(Anka Publisher, 116-11 Sok No.10 K 2 D 2, Bornova, Izmir 35050, Turkey, 2009) Güntekin, Bahar; BAŞAR, EROL; TR204666; TR142226Charles Darwins's evolution theory was surveyed and analyzed by Henri Bergson in his book "Evolution Creatrice" (1907). Bergson described the importance of "intuition" and "cognitive processes" during evolution. The present essay describes the importance of entropy changes during evolution of species and development of cognition and intuition. The importance of Bergson's philosophy in modern sciences is globally explained.Publication Multiple Oscillations and Phase Locking in Human Gamma Responses: An Essay in Search of Eigenvalues(Anka Publisher, 116-11 Sok No.10 K 2 D 2, Bornova, Izmir 35050, Turkey, 2012) BAŞAR, EROL; 142226This report describes a new strategy to analyze and interpret the fine structure of the human brain's gamma oscillations between the frequency ranges of 28 to 48 Hz. There are at least 3-4 phase/time-locked gamma responses within the 28-45-Hz frequency window. Late responses starting around 300 ms are probably responses that are conveyed over reticular formation, hippocampus, etc., whereas the early response in the primary occipital cortex O1 starting at 100 ms is most probably the direct response over the short pathway over lateral geniculate nucleus. Eigenvalues or nodes: It is remarkable that nodes or Eigenvalues are observed, despite the complexity of the pathways and the superposition of several oscillations. It appears that the event-related oscillations in the gamma band undergo an increasing frequency modulation. The time course in the first 200 ms has lower frequencies of approximately 28-30 Hz. With increasing time, the frequencies of these oscillations reach values of up to 46 Hz. The brain reacts within three-to-four frequency bands, depending on the modality of stimulation. In the context of quantum dynamics, the results are tentatively explained via the concept of eigenvalues.Publication S-Matrix and Feynman Space-Time Diagrams to Quantum Brain Approach An Extended Proposal(Anka Publisher, 116-11 Sok No.10 K 2 D 2, Bornova, Izmir 35050, Turkey, 2009) BAŞAR, EROL; TR142226This report describes the importance of oscillations in brain function and introduces metaphors to quantum dynamics. In order to analyze scattering processes at the level of elementary particles Werner Heisenberg proposed the use of the so-called S-Matrix to understand nuclear interactions by studying ingoing at outgoing particles. Later, Richard Feynman developed useful schemes in order to visualize processes of elementary particle interactions. In the present report a metaphor to Feynman Diagrams is developed in order to model the "Ongoing Brain Activity and Event Related Oscillations". The response susceptibility of the brain shows a probabilistic causality similar to uncertain processes in elementary particle physics. A new grammar called Brain Feynman Diagrams is proposed in order to show brain oscillatory responses as a more visible construct in comparison to conventional compound brain potentials.Publication Why The Concept Of "Quantum Brain" Was Not Discovered In 1940s(Anka Publisher, 116-11 Sok No.10 K 2 D 2, Bornova, Izmir 35050, Turkey, 2010) BAŞAR, EROL; TR142226Already in 1940s several neurophysiologic, biochemical and physical discoveries took place and the conjecture was open for the initiation of the "Quantum Brain Concept". The present essay explains the ensemble of discoveries that could lead to the quantum brain concept and tries to find out the reason, why this concept was delayed during many decades.