Persona:
Pellón Suárez de Puga, Ricardo

Foto de perfil
Dirección de correo electrónico
ORCID
0000-0002-4099-7621
Fecha de nacimiento
Proyectos de investigación
Unidades organizativas
Puesto de trabajo
Apellidos
Pellón Suárez de Puga
Nombre de pila
Ricardo
Nombre

Filtros

2018 - 201912020 - 20231
Restablecer filtros

Ajustes

Autor: Labajos López, María José × search.filters.applied.f.itemDepartamento: Psicología Básica I ×

Resultados de la búsqueda

Mostrando 1 - 2 de 2
  • Miniatura
    Publicación
    Activity-Based Anorexia and Food Schedule Induction
    (Springer, 2018-05-30) Labajos López, María José; Pellón Suárez de Puga, Ricardo; Preedy, Victor; Patel, Vinood B.; https://orcid.org/0000-0003-2074-6566
    The term activity-based anorexia refers to the animal model of anorexia nervosa in humans, by which laboratory rats lose weight rapidly and progressively when submitted to a food access regime of 1 h a day and free access to an activity wheel the remainder of the time. This combination of diet and exercise eventually leads the animals into a process of self-starvation that can end up in their death, a reason by which activity-based anorexia is considered analogous of anorexia nervosa in humans, a disease that combines self-imposed food restriction with an excessive increase in physical activity. The best-studied example of schedule-induced behavior is the excessive ingestion of water in animals that are food deprived and for whom the food episodes occur intermittently. Schedule-induced polydipsia is characterized by the consumption of water around the feeding episodes, similarly to what is seen with activity in the phenomenon of activity-based anorexia. The study presented supports the relationship between both phenomena, so that the initial development of excessive drinking facilitates the subsequent development of wheel running. It is suggested that the imposition of very strict feeding episodes could play an important role during the initial stages of the development of anorexia, facilitating the development of hyperactivity that could end up interfering with food ingestion. Prevention for the development of anorexia should focus on a more efficient control of food regimes rather than limiting physical exercise. The adequate scheduling of feeding episodes should reduce hyperactivity, as it follows from its conception as induced behavior.
  • Miniatura
    Publicación
    Mutual facilitation between activity-based anorexia and schedule-induced polydipsia in rats
    (Springer, 2023-01-05) Labajos López, María José; Calcagni, Gianluca; Pellón Suárez de Puga, Ricardo
    The objective of this study was to evaluate the possible relationship between drinking (licks) in the schedule-induced polydipsia (SIP) phenomenon and running (turns in the wheel) in the activity-based anorexia (ABA) one. Within-subjects counterbalanced experiments were designed with male Wistar rats which underwent both behavioral procedures; half of them performed the ABA procedure frst and the other half the SIP procedure frst. In Experiment 1, the initial development of ABA facilitated the subsequent acquisition of SIP, whereas the frst acquisition of SIP retarded the subsequent development of ABA. Given that SIP exposure implied food restriction, it could be that adaptation to the food regime contributed to lowering ABA manifestation. Thus, Experiment 2 was carried out in exactly the same way as Experiment 1, with the exception that animals which frst went through SIP prior to undergoing the ABA procedure had no food restriction. In this case, both ABA and SIP as frst experiences facilitated the further development of SIP and ABA, respectively. This suggests that running in ABA may be functionally similar to drinking in SIP; therefore, both behaviors can be thought of as induced by the schedule/regime of intermittent food availability.