| dc.contributor | López Hincapié, José David | |
| dc.contributor | Trujillo Orrego, Natalia | |
| dc.creator | Rodríguez Calvache, Mónica Viviana | |
| dc.date | 2019-12-17T20:39:53Z | |
| dc.date | 2019-12-17T20:39:53Z | |
| dc.date | 2017 | |
| dc.date.accessioned | 2023-08-28T20:17:52Z | |
| dc.date.available | 2023-08-28T20:17:52Z | |
| dc.identifier | Rodríguez Calvache, M. V. (2017). Methodology to recognize atypical functioning in emotional processing of Colombian ex-combatants using EEG brain connectivity. (Tesis de maestría). Universidad de Antioquia, Medellín, Colombia. | |
| dc.identifier | http://hdl.handle.net/10495/12624 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8476927 | |
| dc.description | RESUMEN: El proceso de reincorporación social de los excombatientes se dificulta ya que la exposición crónica a la violencia afecta su procesamiento emocional PE. Por esto, se sugiere que la evaluación del PE es crucial para su caracterización. Además, ésta contribuirá al diseño y evaluación de entrenamientos destinados a ayudarlos en su reintegración.
Aquí se desarrolla una metodología para reconocer el funcionamiento atípico del PE de excombatientes colombianos utilizando análisis de conectividad cerebral con datos de electroencefalografía. Se propone un modelo para el pre-procesamiento de los datos y se comparan cinco métricas de conectividad. Posteriormente, utilizando la metodología elegida el PE de los excombatientes es caracterizado. Finalmente, se analizan las diferencias del PE de los excombatientes que recibieron una intervención de formación social cognitiva y los que no la recibieron. | |
| dc.description | ABSTARCT: Reintegration is the process through which ex-combatants adapt to society after being part of an illegal armed group. Social reintegration process of ex-combatants is overshadowed because chronic exposure to violence changes their personality expression, social behavior, and cognition; and affects their emotional processing (EP). EP is necessary for the analysis of everyday situations and is afected by trauma exposition. Because of that, researchers suggest that the assessment of cognitive and behavioral profile on EP is crucial to characterize ex-combatants after chronic exposition to war. Furthermore, the characterization of EP will contribute to the design of cognitive trainings aimed to help ex-combatants on their reintegration process.
EP activates cortical and subcortical structures of the brain associated with the identification of valence of real live stimuli, faces and schematic objects. The study of EP has been performed with brain connectivity analysis, using computerized cognitive tasks synchronized with electroencephalography (EEG) recordings. Brain connectivity technique focuses on how the brain is processing the information in order to establish the pattern of activation required to generate a cognitive process. Atypical connectivity patterns represent a disruption on the connection among areas used for diferent kinds of processing. This thesis focuses on the development of a methodology to recognize atypical functioning in EP of Colombian ex-combatants using brain connectivity analysis from scalp EEG recordings. For that purpose, at first, a model for preprocessing the EEG data and removing the artefactual components is developed. Secondly, the performance of five brain connectivity measures is compared: Correlation, Cross-Correlation, Coherence, Imaginary part of
Coherency and the Phase-Lag Index; in order to analyze their advantages and drawbacks when tested on Colombian ex-combatants' EP related tasks data. Thereafter, using the proposed methodology the EP of ex-combatants is characterized. Finally, diferences in EP of ex-combatants who received a social cognitive training intervention and those who did not receive it are analyzed. | |
| dc.format | 107 | |
| dc.format | application/pdf | |
| dc.format | application/pdf | |
| dc.language | spa | |
| dc.publisher | Medellín, Colombia | |
| dc.rights | Atribución-NoComercial-SinDerivadas 2.5 Colombia (CC BY-NC-ND 2.5 CO) | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/2.5/co/ | |
| dc.rights | http://purl.org/coar/access_right/c_abf2 | |
| dc.rights | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Conectividad cerebral | |
| dc.subject | Excombatientes colombianos | |
| dc.subject | Procesamiento emocional | |
| dc.subject | Reincorporación a la vida civil | |
| dc.title | Methodology to recognize atypical functioning in emotional processing of Colombian ex-combatants using EEG brain connectivity | |
| dc.type | info:eu-repo/semantics/masterThesis | |
| dc.type | info:eu-repo/semantics/draft | |
| dc.type | http://purl.org/coar/resource_type/c_bdcc | |
| dc.type | https://purl.org/redcol/resource_type/TM | |
| dc.type | Tesis/Trabajo de grado - Monografía - Maestría | |
