scholarly journals Functional anomaly mapping reveals local and distant dysfunction caused by brain lesions

2018 ◽  
Author(s):  
Andrew T. DeMarco ◽  
Peter E. Turkeltaub
Keyword(s):  
Normal Tissue ◽  
Brain Lesions ◽  
Direct Measure ◽  
Focal Lesions ◽  
And Behavior ◽  
Brain Behavior ◽  
Lesion Method ◽  
The Brain ◽  
Abnormal Tissue

SummaryThe lesion method has been a cornerstone in the endeavor to understand brain-behavior relationships in humans, but has relied on the flawed assumption that anatomically abnormal tissue functions abnormally and anatomically normal tissue functions normally. To address this longstanding problem, we introduce an approach to directly map the degree of functional anomaly throughout the brain in individual patients. These functional anomaly maps identify anatomical lesions and are stable across measurements. Moreover, the maps identify functionally anomalous regions in anatomically normal tissue, providing a direct measure of remote effects of lesions such as diaschisis. Lesion-behavior mapping using these maps replicates classic behavioral localization and identifies relationships between tissue function and behavior distant from the anatomical lesions. This method provides brain-wide maps of the functional effects of focal lesions, which could have wide implications for one of the most important methods in neuroscience.

scholarly journals Williams Syndrome As a Model for Elucidation of the Pathway Genes - the Brain - Cognitive Functions: Genetics and Epigenetics

Acta Naturae ◽  
2014 ◽  
Vol 6 (1) ◽  
pp. 9-22 ◽  
Author(s):  
Е. А. Nikitina ◽  
A. V. Medvedeva ◽  
G. А. Zakharov ◽  
Е. V. Savvateeva-Popova
Keyword(s):  
Simple Model ◽  
Williams Syndrome ◽  
Cognitive Functions ◽  
Single Gene ◽  
Model Systems ◽  
Epigenetic Events ◽  
Simple Model System ◽  
And Behavior ◽  
Brain Behavior ◽  
The Brain

Genomic diseases or syndromes with multiple manifestations arise spontaneously and unpredictably as a result of contiguous deletions and duplications generated by unequal recombination in chromosomal regions with a specific architecture. The Williams syndrome is believed to be one of the most attractive models for linking genes, the brain, behavior and cognitive functions. It is a neurogenetic disorder resulting from a 1.5 Mb deletion at 7q11.23 which covers more than 20 genes; the hemizigosity of these genes leads to multiple manifestations, with the behavioral ones comprising three distinct domains: 1) visuo-spatial orientation; 2) verbal and linguistic defect; and 3) hypersocialisation. The shortest observed deletion leads to hemizigosity in only two genes: eln and limk1. Therefore, the first gene is supposed to be responsible for cardiovascular pathology; and the second one, for cognitive pathology. Since cognitive pathology diminishes with a patients age, the original idea of the crucial role of genes straightforwardly determining the brains morphology and behavior was substituted by ideas of the brains plasticity and the necessity of finding epigenetic factors that affect brain development and the functions manifested as behavioral changes. Recently, non-coding microRNAs (miRs) began to be considered as the main players in these epigenetic events. This review tackles the following problems: is it possible to develop relatively simple model systems to analyze the contribution of both a single gene and the consequences of its epigenetic regulation in the formation of the Williams syndromes cognitive phenotype? Is it possible to use Drosophila as a simple model system?

The History of Behavioral Neurology

2016 ◽  
Author(s):  
Christopher M. Filley
Keyword(s):  
Early 19Th Century ◽  
Cognition And Emotion ◽  
Behavioral Neurology ◽  
History Of ◽  
Cerebral Localization ◽  
The Mind ◽  
Brain Behavior ◽  
Lesion Method ◽  
The Brain ◽  
Systematic Thinking

Behavioral neurology is the neurologic subspecialty devoted to the study of brain-behavior relationships. Whereas systematic thinking about the brain as the organ of the mind began in antiquity, modern investigation began in the early 19th century as cerebral localization of function became securely appreciated. Clinical-pathological correlation using the lesion method yielded many important insights, and, in the mid-20th century, Norman Geschwind defined behavioral neurology as it exists today. The scope of the field soon expanded to include focal and diffuse disorders across the lifespan, and powerful neuroimaging technologies then led to increasingly sophisticated understanding of the representation of cognition and emotion in the brain. While the term behavioral neurology refers mainly to subspecialty neurologists working in North America and Britain, the interests of behavioral neurologists are virtually identical to those of neuropsychologists, neuropsychiatrists, and many others around the world attracted to the neurology of behavior.

The Neuropsychiatric View of Brain and Behavior

2001 ◽  
Vol 7 (5) ◽  
pp. 651-652
Author(s):  
Gregory P. Lee
Keyword(s):  
Psychiatric Disorders ◽  
Clinical Psychology ◽  
Valuable Resource ◽  
Behavioral Neurology ◽  
Brain And Behavior ◽  
And Behavior ◽  
Brain Behavior ◽  
The Brain

This volume is an introductory text summarizing much of the brain–behavior literature emphasizing the neuroanatomical underpinnings of psychiatric disorders. Because it has been written by a neuroanatomist and a neuropsychiatrist, much of the material in the book is typically not covered in the more orthodox texts written from a behavioral neurology or neuropsychological perspective. As such, this volume will be a valuable resource for students and practitioners of clinical psychology and psychiatry.

Disturbances of higher cerebral function

2020 ◽  
pp. 5821-5830
Author(s):  
Peter J. Nestor
Keyword(s):  
Cerebral Hemisphere ◽  
Cognitive Disorders ◽  
Language Disorders ◽  
Brain Lesions ◽  
Cerebral Function ◽  
Imaging Studies ◽  
Focal Lesions ◽  
Specific Loss ◽  
Cognitive Faculties ◽  
The Brain

Clinicopathological and imaging studies indicate strong associations between particular disorders of cognition and focal disease in the brain, but not all focal lesions induce specific loss of higher functions. Neuropsychological research has deepened our understanding by suggesting organizational frameworks for human cognitive faculties. Modern scientific study of higher cerebral function began in the late 19th century with the case studies of Broca and Wernicke. Their observations of language disorders associated with damage to the left hemisphere gave rise to the notion that specific mental faculties could be dissociated from each other and localized to specific regions within the cerebral hemisphere. Since that time clinicopathological and, more recently, imaging studies have established associations between specific cognitive disorders and focal brain lesions; these studies also show that some lesions do not give rise to highly specific deficits.

Review of Self-regulation of the Brain and Behavior.

1985 ◽  
Vol 30 (12) ◽  
pp. 999-999
Author(s):  
Gerald S. Wasserman
Keyword(s):  
Self Regulation ◽  
Brain And Behavior ◽  
And Behavior ◽  
The Brain

Brain Evidence in Nursing Research: EEG Methodology

2020 ◽  
Vol 10 (1) ◽  
pp. 98-101
Author(s):  
Yueh-O Chuang ◽  
Ren-Jen Hwang
Keyword(s):  
Emotional Health ◽  
Physiological Data ◽  
Evidence Based ◽  
Nursing Research ◽  
Healthy Behaviors ◽  
Alpha Asymmetry ◽  
Role Of Nursing ◽  
Brain Behavior ◽  
Evidence Based Nursing ◽  
The Brain

This aim of the mini-review paper is to introduction the bio-physiologic measures of resting state EEG for nursing scientist. Article specifically addresses the emotional domain as clarified by concepts of brain evidence-based nursing research reviewed that the emotion aspect documented a strong link to frontal brain alpha activities asymmetry.  Extensive nursing research has been performed in emotional, behavioral, and/or psychological matters for healthy and unhealthy populations. Evidence-based nursing can transform the way that data is used to improve health and healthcare. One core role of nursing practice is to promote healthy behaviors. Previous researches have shown out that the brain is the main ambassador of behavioral change. The electroencephalogram (EEG) is an efficient tool to study brain-behavior relations. Evidences show that frontal alpha asymmetry is an important marker suggests that EEG is beneficial for assessment emotional capacities and appraises nursing efficiency. The basic resting alpha frontal asymmetry provides a reliable instrument in conducting nursing researches in order to strengthen the quality of nursing. Furthermore, we provide a viewpoint to show progress in the novel research issue probably for clinical applications. To integrate biological measures in order to gain highly accurate and precise advantages of EEG and beneficial assessment of the emotional capacities are suggested. Nursing promotes healthy behaviors including emotional health. Human behavior changes originate in the brain. EEG enables objective and biological insights into the cognitive process. As a foundation, the neuroscience research requires profound knowledge and tools to analyze bio-physiological data. Creating Cross-disciplinary cooperation must be inevitable alliances to advance nursing research.

Individual Uniqueness in the Neonatal Functional Connectome

2021 ◽  
Author(s):  
Qiushi Wang ◽  
Yuehua Xu ◽  
Tengda Zhao ◽  
Zhilei Xu ◽  
Yong He ◽  
...  
Keyword(s):  
Individual Differences ◽  
Individual Identification ◽  
Imaging Data ◽  
Functional Connectome ◽  
Middle Range ◽  
Human Connectome Project ◽  
The Individual ◽  
And Behavior ◽  
Identification Analysis ◽  
The Brain

Abstract The functional connectome is highly distinctive in adults and adolescents, underlying individual differences in cognition and behavior. However, it remains unknown whether the individual uniqueness of the functional connectome is present in neonates, who are far from mature. Here, we utilized the multiband resting-state functional magnetic resonance imaging data of 40 healthy neonates from the Developing Human Connectome Project and a split-half analysis approach to characterize the uniqueness of the functional connectome in the neonatal brain. Through functional connectome-based individual identification analysis, we found that all the neonates were correctly identified, with the most discriminative regions predominantly confined to the higher-order cortices (e.g., prefrontal and parietal regions). The connectivities with the highest contributions to individual uniqueness were primarily located between different functional systems, and the short- (0–30 mm) and middle-range (30–60 mm) connectivities were more distinctive than the long-range (>60 mm) connectivities. Interestingly, we found that functional data with a scanning length longer than 3.5 min were able to capture the individual uniqueness in the functional connectome. Our results highlight that individual uniqueness is present in the functional connectome of neonates and provide insights into the brain mechanisms underlying individual differences in cognition and behavior later in life.

scholarly journals Crosstalk between Existential Phenomenological Psychotherapy and Neurological Sciences in Mood and Anxiety Disorders

Biomedicines ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 340
Author(s):  
Lehel Balogh ◽  
Masaru Tanaka ◽  
Nóra Török ◽  
László Vécsei ◽  
Shigeru Taguchi
Keyword(s):  
Anxiety Disorders ◽  
Biological Treatment ◽  
Sense Of Self ◽  
Phenomenological Approach ◽  
Neurological Damage ◽  
Mood And Anxiety Disorders ◽  
New Interpretation ◽  
And Behavior ◽  
The Impact ◽  
The Brain

Psychotherapy is a comprehensive biological treatment modifying complex underlying cognitive, emotional, behavioral, and regulatory responses in the brain, leading patients with mental illness to a new interpretation of the sense of self and others. Psychotherapy is an art of science integrated with psychology and/or philosophy. Neurological sciences study the neurological basis of cognition, memory, and behavior as well as the impact of neurological damage and disease on these functions, and their treatment. Both psychotherapy and neurological sciences deal with the brain; nevertheless, they continue to stay polarized. Existential phenomenological psychotherapy (EPP) has been in the forefront of meaning-centered counseling for almost a century. The phenomenological approach in psychotherapy originated in the works of Martin Heidegger, Ludwig Binswanger, Medard Boss, and Viktor Frankl, and it has been committed to accounting for the existential possibilities and limitations of one’s life. EPP provides philosophically rich interpretations and empowers counseling techniques to assist mentally suffering individuals by finding meaning and purpose to life. The approach has proven to be effective in treating mood and anxiety disorders. This narrative review article demonstrates the development of EPP, the therapeutic methodology, evidence-based accounts of its curative techniques, current understanding of mood and anxiety disorders in neurological sciences, and a possible converging path to translate and integrate meaning-centered psychotherapy and neuroscience, concluding that the EPP may potentially play a synergistic role with the currently prevailing medication-based approaches for the treatment of mood and anxiety disorders.

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