| Revista: | Salud mental |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000267064 |
| ISSN: | 0185-3325 |
| Autors: | Salazar Juárez, Alberto1 Parra Gámez, Leticia2 Barbosa Méndez, Susana Leff, Philippe Antón, Benito |
| Institucions: | 1Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, México, Distrito Federal. México 2Universidad Nacional Autónoma de México, Facultad de Medicina, México, Distrito Federal. México |
| Any: | 2007 |
| Període: | May-Jun |
| Volum: | 30 |
| Número: | 3 |
| Paginació: | 39-47 |
| País: | México |
| Idioma: | Español |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en español | neurotransmisión implícitos en el sistema circadiano: a) el sistema serotoninérgico proveniente del núcleo del rafé, b) el sistema inmureactivo a NPY proveniente de la hojuela intergeniculada (HIG), c) el sistema GABAérgico que se encuentra presente en la mayoría de las neuronas del NSQ y de la HIG (las proyecciones aferentes del núcleo del rafé y de la HIG hacen sinapsis con neuronas GABAérgicas en el NSQ) y 4) un sistema que implica señales dopaminérgicas y melatoninérgicas, las cuales se han implicado importantemente en sujetos en la vida fetal y neonatal |
| Resumen en inglés | One of the most important functions in which the circadian system participates is to assess that the behavioural and physiological variables adjust appropriately to daily events in the environment, a process referred to as entrainment. Since in the nature the food disposition and predators’ activity also are cyclical, the temporary relation between the circadian rhythm and periodic environmental signals maximizes the survival of each species in its temporary niche. Thus, through this mechanism, the organisms adapt to their environment through circadian system which entrain the organism activities to different external signals. In nature environments the predominance of photic entrainment like primary zeitgeber of the biological clock (suprachiasmatic nucleus) is a clear adaptation to the earthly life; nevertheless other biological advantages can be conferred to an individual if the circadian system also is sensible to other environmental signals that they provide from the external time. In such way, the light is not the only synchronizer affecting the biological clock. Other stimuli like the temperature and locomotor activity induced by novel stimuli and certain drugs are also able to entrain the biological clock. These signals have been described like non-photic stimuli |
| Disciplines | Medicina |
| Paraules clau: | Fisiología humana, Neurología, Biorritmo, Sincronización, Reloj biológico, Luz, Estímulos |
| Keyword: | Medicine, Human physiology, Neurology, Biorhythm, Synchronization, Biological clock, Light, Stimulus |
| Text complet: | Texto completo (Ver PDF) |
