Search results for "Brain"

Smadzeņu aktivitātes EEG novērtējums krustotās un nekrustotās disparitātes gadījumā

2022

Diplomdarbs ir uzrakstīts angļu valodā uz 25 lapaspusēm. Tas satur 14 attēlus, 1 tabulu un 67 literatūras avotus. Binokulārā disparitāte ir būtiska mūsu trīsdimensiju uztverei. Lielākajā daļā pētījumu tik izmeklēta smadzeņu darbības disparitāte apstrādes laikā, savukārt garozas aktivitātei katra veida atšķirības laikā tika pievērsta ļoti maza uzmanība. Pētījuma mērķis ir novērtēt smadzeņu aktivitāti krustotās un nekrustotās disparitātes anaglifēšanas vizualizācijas laikā uz plakanpaneļa displeja. Smadzeņu aktivitāte tika reģistrēta ar elektroencefalogrāfu, iegūtie potenciāli (ERP) un neirālās svārstības. Ievērojama aktivitāte tika izraisīta tikai P2 komponentē(ERP) attiecībā uz nesakrustotu…

Extracellular membrane vesicle shedding and the blood-brain barrier

2010

Proapoptotic effects of oligodendroglioma cells on primary brain cells in culture.

2009

Sustaining Attention for a Prolonged Duration Affects Dynamic Organizations of Frequency-Specific Functional Connectivity

2020

Sustained attention encompasses a cascade of fundamental functions. The human ability to implement a sustained attention task is supported by brain networks that dynamically formed and dissolved through oscillatory synchronization. The decrement of vigilance induced by prolonged task engagement affects sustained attention. However, little is known about which stage or combinations are affected by vigilance decrement. Here, we applied an analysis framework composed of weighted phase lag index (wPLI) and tensor component analysis (TCA) to an EEG dataset collected during 80 min sustained attention task to examine the electrophysiological basis of such effect. We aimed to characterize the phase…

Rhythmic Memory Consolidation in the Hippocampus

2022

Functions of the brain and body are oscillatory in nature and organized according to a logarithmic scale. Brain oscillations and bodily functions such as respiration and heartbeat appear nested within each other and coupled together either based on phase or based on phase and amplitude. This facilitates communication in wide-spread neuronal networks and probably also between the body and the brain. It is a widely accepted view, that nested electrophysiological brain oscillations involving the neocortex, thalamus, and the hippocampus form the basis of memory consolidation. This applies especially to declarative memories, that is, memories of life events, for example. Here, we present our vie…

Fuga de cerebros y biografías low cost: nueva etapa en la precarización de la juventud

2015

0 false 21 18 pt 18 pt 0 0 false false false /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin; mso-fareast-language:EN-US;} La normalización de la precariedad entre las personas jóvenes está entrando en lo que parece una…

La libertad incorporada como clave para la neuroeducación moral

2019

La libertad es uno de los principales atributos con los que tradicionalmente se ha caracterizado al ser humano. El objetivo de este artículo es analizar si a la luz de las investigaciones y los experimentos neurocientíficos es posible seguir caracterizando al ser humano como un ser con libertad. Para ello se alude al conocido experimento de Benjamin Libet y las conclusiones reduccionistas que influyentes autores como Patricia S. Churchland o Michael Gazzaniga extraen para la filosofía práctica. Desde una metodología hermenéutica, se denuncia el reduccionismo neurocientífico que pretende negar la libertad basándose en evidencias empíricas. Frente a dicho reduccionismo se propone un enfoque h…