Study for the identification of psychophysiological markers of healthy aging and mild cognitive impairment
The main aims of this doctoral study were to identify psychophysiological markers of healthy aging and amnestic mild cognitive impairment (aMCI). Event-related brain potentials (ERPs) associated with the automatic detection of unattended infrequent (deviant/novel) auditory stimuli (MMN), the orienti...
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| Tipo de recurso: | tesis doctoral |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universidad de Santiago de Compostela (USC) |
| Repositorio: | Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela |
| Idioma: | inglés |
| OAI Identifier: | oai:minerva.usc.gal:10347/19465 |
| Acceso en línea: | http://hdl.handle.net/10347/19465 |
| Access Level: | acceso abierto |
| Palabra clave: | Materias::Investigación::61 Psicología::6106 Psicología experimental::610610 Psicología fisiológica Materias::Investigación::61 Psicología::6108 Psicología de la vejez::610803 Senectud |
| Sumario: | The main aims of this doctoral study were to identify psychophysiological markers of healthy aging and amnestic mild cognitive impairment (aMCI). Event-related brain potentials (ERPs) associated with the automatic detection of unattended infrequent (deviant/novel) auditory stimuli (MMN), the orienting response to these stimuli (P3a) and the reorienting of attention (RON) to visual relevant stimuli were evaluated. Middle-aged and old adults, relative to young, showed a decline in processing of irrelevant stimuli and the posterior reorienting of attention to relevant stimuli. MMN and P3a components may be useful psychophysiological markers for the diagnosis of aMCI and for distinguishing between aMCI subtypes. |
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