scholarly journals Biophysics Of Brain Activity. Brain Activity In The Development Of "Creative Thinking" "Mind Map"

Author(s):  
A. G. Ganiev, Z. Sh. Abdunazarova

The article provides information about the human brain, including its energy consumption, the functional functions of its parts, the biophysics of the sensory channels of the visual mechanism. The channels of movement of information through the neural fibers of the brain, the description of "unusual" ideas that lead to new and "creative thinking", the importance of the method of "comparative learning" in the development of "imagination" and "creative thinking" were discussed. The “specialty-related” mind map of the cerebral hemispheres serves to visualize and develop the activity of the right hemisphere of the brain, which is responsible for “creative thinking”. To activate the right hemisphere of the brain, it is recommended to use emotional "mind map", Uzbek folk tales, folk sports, folklore. The "mind map" of the sensory channels encourages feedback on the functioning of the human sensory organs, the mechanism of information reception, and opportunities to increase the efficiency of this process. It serves to visualize the mechanism by which ‘imagination’ is formed.

2014 ◽  
Vol 28 (1) ◽  
pp. 32-46 ◽  
Author(s):  
Eligiusz Wronka ◽  
Wioleta Walentowska

Recent ERP studies demonstrate that the processing of facial emotional expression can be modulated by attention. The aim of the present study was to investigate the neural correlates of attentional influence on the emotional expression processing at early stages. We recorded ERP responses to facial stimuli containing neutral versus emotional expression in two different conditions. The first task was to discriminate facial expressions, while the second task was to categorize face gender. Enhanced positivity at occipital and occipito-temporal locations between 110 and 170 ms poststimulus was elicited by facial stimuli presented in the expression task when compared to the gender task. This effect temporally overlapped with the P1 and N170 components, which reflect the early stages of face processing. To localize the sources of the brain activity underlying observed attentional modulation, we used Standardized Low Resolution Electromagnetic Tomography. Enhanced activity within the extrastriate cortex for the expression task was obtained as the reflection of early ERP effect. Additionally, we found stronger activation within the superior temporal and the fusiform gyrus of the right hemisphere in the expression task when compared to the gender task. Our findings undoubtedly confirm that early stages of the emotional expression processing can be modified by top-down attention.


Author(s):  
Georgiy Korobeynikov ◽  
◽  
Lesia Korobeynikova ◽  
Alexandr Gorascenco ◽  
Andrey Vorontsov ◽  
...  

The results of a study of the autonomous regulation of the heart rate in elite wrestlers with different dominance of the cerebral hemispheres were present in the manuscript 23 elite wrestlers. Were examined members of the National Team of Ukraine in Greco-Roman wrestling, aged 22-34 years-old. A body composition monitor "Omron BF511" and a computer electrocardiograph "Fazagraf" were used. It was revealed that elite wrestlers with a dominance of the right hemisphere have more intense regulation of the heart rhythm compared to wrestlers with a dominance of the left hemisphere of the brain. With an increase in the tension of the system of autonomous regulation of the heart rhythm in wrestlers with the dominance of the right hemisphere of the brain, the activation of the central and sympathetic division of regulation occurs. For the purpose of a more effective preparation process and in the development of individual training programs for elite wrestlers, it is necessary to determine the dominance of the cerebral hemispheres.


2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Stefano F. Cappa

The study of the brain mechanisms involved in narrative production and comprehension has made significant progress in the last decade. The paper reviews some of the available evidence, focusing on functional imaging studies aimed to assess brain activity in normal subjects, while they listen to narratives or watching movies. The complex brain networks engaged by these complex tasks extend beyond the classical language areas, by involving the right hemisphere and hippocampal structures. These results provide initial insights into the mechanisms involved in narrative cohesion, situation model construction and distinction/integration of narrative elements.


2002 ◽  
Vol 14 (2) ◽  
pp. 228-242 ◽  
Author(s):  
Debra L. Long ◽  
Kathleen Baynes

Readers construct at least two interrelated representations when they comprehend a text: (a) a propositional representation containing the individual ideas that are derived from each sentence and the relations among them and (b) a discourse model, a representation of the context or situation to which the text refers. We used a paradigm called “item priming in recognition” to examine how these representations are stored in the cerebral hemispheres. In Experiment 1, the priming paradigm was used in combination with a lateralized visual field (VF) procedure. We found evidence that readers' representations were structured according to propositional relations, but only in the left hemisphere. Item recognition was facilitated when a concept was preceded by another concept from the same proposition when targets were presented to the left, but not to the right, hemisphere. We found priming in both hemispheres, however, when targets were context-appropriate senses of ambiguous words or topics of passages. In Experiment 2, we replicated the priming effects in three callosotomy patients. We argue that the distinction between a propositional representation and a discourse model is important with respect to how discourse is represented in the brain. The propositional representation appears to reside in the left hemisphere, whereas aspects of the discourse model appear to be represented in both hemispheres.


Author(s):  
Michio Sugeno ◽  
◽  
Takahiro Yamanoi ◽  

This paper discusses brain activity during the understanding of sentences from the perspective of Systemic Functional Linguistics. We focus on ideational meaning (propositional meaning in an ordinary sense) and interpersonal meaning (as is typically seen in honorific expressions). The present study is an experimental exploration of the spatiotemporal pathways of neuronal activation. Japanese sentences containing and not containing honorific expressions are compared in electroencephalography experiments. In these experiments, the sentences without honorific expressions have ideationalmeaning, but those with honorific expressions have both ideational and interpersonal meanings. Through the use of the equivalent current dipole source localization method, the spatiotemporal processes of activation of the brain are analyzed. There is a single pathway during the understanding of the sentences without honorific expressions; this pathway is mainly observed in the left hemisphere. On the other hand, there are three pathways in the case of the sentences with honorific expressions, two of which are observed in the right hemisphere. The remaining pathway is the same as the aforementioned single pathway. This fact strongly suggests that the common pathway is concerned with processing ideational meaning. The other two pathways observed during understanding of the sentences with honorific expressions are considered to be related to processing interpersonal meaning.


2020 ◽  
Author(s):  
Larissa Bastos Tavares ◽  
Idaliana Fagundes de Souza ◽  
Bartolomeu Fagundes de Lima Filho ◽  
Kim Mansur Yano ◽  
Juliana Maria Gazzola ◽  
...  

Abstract Dual-task activities are common in daily life and have greater motor/cognitive demands. These are conditions that increase the risk of older adult falls. Falls are a public health problem. Brain mapping during dual-task activities can inform which therapeutic activities stimulate specific brain areas, improving functionality, and decreasing dependence and the risk of falls. The objective of the study was to characterize the brain activity of healthy older adults while performing a dual-task activity called the Functional Gait Test (FGT). Method : This observational study included 30 older adults aged 65 to 75 years, and it was approved by the institutional review board. The FGT consists of walking following a sequence of numbers (simple task), and a sequence of alternating letters and numbers (complex task). During the activity, the subjects had their cortical activation pattern measured using the Emotiv EPOC® electroencephalogram. Complete data was obtained for analysis on 13 participants. The data was analyzed using descriptive statistics (mean and standard deviation), and paired T-tests to compare the brain activity during the conditions (simple vs. complex task). Results : Alpha brain waves were activated in the right and left hemispheres during the simple task, while Alpha brain waves’ activation during the complex task was predominant in the right hemisphere. However, the differences were not statistically significant. The Betha waves had predominant activation in the left hemisphere during the simple task, and predominant activation in the right hemisphere during the complex task. The difference was statistically significant in 11 out of the 14 channels evaluated ( P <0.04). Conclusion: The results corroborates the increased complexity of dual-tasks due to the predominant activation of the right hemisphere, which is related to motor learning process and new stimulus processing.


2015 ◽  
Vol 15 (04) ◽  
pp. 1550054 ◽  
Author(s):  
YAN XIONG ◽  
YAN LI ◽  
YU CHEN ◽  
PING YUAN ◽  
YUBO FAN ◽  
...  

This paper studied the differences of gender and left/right-handed groups from a neuroscience perspective through task-related power of alpha power changes during the generation of creative ideas. Aiming to investigate the effects of the differences, it will help understand the specific neural processes for different genders and left/right-handed groups. We used B-Alert X10®; electroencephalography (EEG) system, computed for left and right hemispheres, to determine if EEG metrics differentiated between the gender and left/right-handed groups. This study assessed EEG power spectral density (PSD) while 17 healthy participants worked on the alternative uses (AU) task. The results showed that (1) the creativity level has no relations with the gender; there is no obvious difference between males and females on the process of creative idea generation. (2) The creativity level is high related to the cultivation of innovative ability. There is obvious higher alpha power changes in posterior regions of the right hemisphere compared to the left hemisphere of the brain for high original group, and a stronger task-related alpha synchronization showed in the right hemisphere than that in the left one for the low original group. (3) There is comparatively lower alpha power in parietal region in the left hemisphere than that in the right one for the left-handed participants, and higher alpha power in the frontal region for the left-handed and in parietal region for right-handed participants. The comparison among different genders and left/right-handed participants can help us understand more about the creative thinking manifested in the human brain.


1994 ◽  
Vol 10 (4-5) ◽  
pp. 561-571
Author(s):  
Gunnar Heuser ◽  
Ismael Mena ◽  
Francisca Alamos

Exposures to neurotoxic chemicals such as pesticides, glues, solvents, etc. are known to induce neurologic and psychiatric symptomatology. We report on 41 patients 16 young patients (6 males, 10 females, age 34 8 yrs.) and 25 elderly patients (9 males, 16 females, age 55 7 yrs). Fifteen of them were exposed to pesticides, and 29 to solvents. They were studied with quantitative and qualitative analysis of regional cerebral bood flow (rCBF), performed with 30 mCi of Xe-133 by inhalation, followed by 30 mCi of Tc-HMPAO given intravenously. Imaging was performed with a brain dedicated system, distribution of rCBF was assessed with automatic ROI definition, and HMPAO was normalized to maximal pixel activity in the brain. Results of Xe rCBF are expressed as mean and S.D. in ml/min/100g, and HMPAO as mean and S.D. uptake per ROI, and compared with age-matched controls 10 young and 20 elderly individuals. Neurotoxics HMPAO Uptake Young Elderly R. Orbital frontal R. Dorsal frontal .70 .66 p < 0.05 R. Temporal .64 p < 0.001 R. Parietal .66 .66 We conclude that patients exposed to chemicals present with diminished CBF, worse in the right hemisphere, with random presentation of areas of hypoperfusion, more prevalent in the dorsal frontal and parietal lobes. These findings are significantly different from observations in patients with chronic fatigue and depression, suggesting primary cortical effect, possibly due to a vasculitis process.


Author(s):  
A. Shestak ◽  
N. Filimonova

As a result of researches of 20 persons, aged 18-23 years, it was found that men under the influence of binaural beats 10 Hz, compared with binaural sound when testing a simple sensorimotor reaction was found greater activity in the frontal, central and occipital areas of both hemispheres and right temporal and parietal areas, which may be indicative about activation system imaginative and creative thinking, the need for which was absent for the implementation of a simple sensorimotor reaction. Differences in time as a simple sensorimotor reaction and choice reaction was observed. When testing, choice reaction was detected influence of binaural beats 10 Hz on the brain activity of men. In women under the influence of binaural beats 10 Hz were significantly higher speeds as a simple sensorimotor reaction and choice reaction and significantly smaller spread of latent periods of simple sensorimotor reaction. This was above the hemispheric interaction suppressed irrelevant zone and the high activity of the ascending process of attention that has provided highly specific data processing and high performance tasks compared with binaural sound.


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