Search results for " brain"

The origins of the aesthetic enjoyment of music - A review of the literature

2009

Listeners attribute a positive or negative value to music. This aesthetic experience is known to be observable over the individuals’ entire life span, from early childhood to old age, and in every culture. It is then often concluded that such an aesthetic experience constitutes part of the human nature, having an important biological foundation. This assumption leads to the question of how aesthetic experience of music originated in the biological evolution. In this paper, we will explore this question in the light of evolutionary psychology, cognitive science, and systems neuroscience. After reviewing the existing proposals, we conclude that the explanation of the origin of aesthetic expe…

Developmental Coordination Disorder, Historical Beginnings and Development

2015

<p><em>This article contains theoretical analysis about Developmental Coordination Disorder historical evolution. Studies include a wide variation in terminology and criteria to describe . Developmental Coordination Disorder. Developmental Coordination Disorder is a complex neurological condition, which affects muscle coordination and perception.</em></p>

Isolation and molecular characterization of brain microvascular endothelial cells from human brain tumors.

2002

Brain tumor formation and growth is accompanied by the proliferation and infiltration of blood capillaries. The phenotypes of endothelial cells that make up capillaries are known to differ not only in the tissues in which endothelial cells are located but also as a result of the microenvironment to which they are exposed. For this reason, primary cultures of brain endothelial cells were isolated from human brain tumors removed by surgery and compared with cells from normal tissue. The primary confluent monolayers that grew out of isolated capillary fragments consisted of closely associated, elongated, fusiform-shaped cells. But brain tumor-derived endothelial cells in culture exhibited sign…

Surgical Treatment for Traumatic Brain Injury: Is It Time for Reappraisal?

2015

Traumatic brain injury (TBI) is a major cause of morbidity and mortality in the United States. It is estimated that each year, on average, TBIs associated with 1.1 million visits to the emergency department, 235,000 hospitalizations, and 50,000 deaths.

Processing of audiovisual associations in the human brain: dependency on expectations and rule complexity

2012

In order to respond to environmental changes appropriately, the human brain must not only be able to detect environmental changes but also to form expectations of forthcoming events. The events in the external environment often have a number of multisensory features such as pitch and form. For integrated percepts of objects and events, crossmodal processing, and crossmodally induced expectations of forthcoming events are needed. The aim of the present study was to determine whether the expectations created by visual stimuli can modulate the deviance detection in the auditory modality, as reflected by auditory event-related potentials (ERPs). Additionally, it was studied whether the complexi…

Suppression of extinction with TMS in humans: from healthy controls to patients.

2006

We review a series of studies exemplifying some applications of single-pulse and paired-transcranial magnetic stimulation (TMS) in the study of spatial attention and of its deficits. We will focus primarily on sensory extinction, the failure to consciously perceive a contralesional sensory stimulus only during bilateral stimulation of homologous surfaces. TMS studies in healthy controls show that it is possible either to interfere or modulate the excitability of the parietal cortex during sensory (i.e. tactile and visual) attentional tasks, thus reproducing a condition of virtual extinction. TMS studies in patients with unilateral (mainly right) brain damage show that the modulation of the …

PETECHIAL BRAIN HAEMORRHAGES IN ACUTE LYMPHOBLASTIC LEUKAEMIA.

2013

A 37-year-old office worker was referred to our hospital with severe weakness, malaise, headache and altered mental status. He was mildly febrile (37.5°C) with reported episodes of agitation. A blood count revealed 709 720 white blood cells (WBC) / μl with 33 000 platelets/μl. The clinical, imaging and laboratory workup led to a diagnosis of acute lymphoblastic leukaemia (ALL) …

Individual variation of form of the brain of Triton cristatus Laur. and its relation to the specific variation of the brain of Urodela

1931

Assessment of Adult Mouse Brain Neuroanatomical Phenotypes Using Quantitative and Precision Histology

2022

Modelling human neurodevelopmental disorders is important in biomedical research since the brain cannot be easily accessed in humans. In this chapter, we describe a series of standardized procedures for the reliable analysis of neuroanatomical phenotypes (NAPs) of the adult mouse brain using quantitative 2D histological practices. Our goal is to provide the reader an experimental pipeline, ranging from experimental work through to data analysis, which can be performed in any academic research setting with or without access to a histology platform. Depending on the type of sections studied, parasagittal or coronal, the assessment of brain neuroanatomy is performed at stereotaxic sections, at…

Detección precoz de la hipoacusia, influencia en el diagnóstico y en el tratamiento temprano

2021

Detección precoz de la hipoacusia, influencia en el diagnóstico y en el tratamiento temprano. INTRODUCCIÓN: La hipoacusia es el déficit sensorial mas frecuente en los países desarrollados. La prevalencia de cualquier grado de hipoacusia es de un 2-3 % de la población infantil y el 80% de las mismas, está presente al nacimiento. Los programa de screening auditivo (SA) se justifican por la alta incidencia de la hipoacusia y sus consecuencias devastadoras para el lenguaje cuando no se detecta precozmente. OBJETIVO: Establecer el número de niños diagnosticados de hipoacusia congénita gracias al SA en el hospital Universitario La Fe. Analizamos las técnicas utilizadas en el cribado, los parámetr…