Volume 6 Num. 3 - November 2006
Area and Peak Shift Effects in a Navigation Task With Rats [Efectos de Desplazamiento del ?rea y del M?ximo en una Tarea de Navegaci?n con Ratas]
Volume 6 Num. 3 - November 2006 - Pages 313-330
Authors:
E. Blanco, J. Santamar?a, V.D. Chamizo and T. Rodrigo
Abstract:
In two experiments in a Morris pool rats were trained with a successive discrimination procedure in the presence of two objects or landmarks. The angular separation between the two landmarks signalled either the presence (0 degrees, S+ trials) or the absence (90 degrees, S- trials) of the platform. After training the rats received unrewarded test trials in which one of the landmarks was presented at a range of places in relation to the second landmark. The generalization gradient obtained in Experiment 1 showed higher responding on the side of S+ away from S-. This effect has been called area shift. In Experiment 2, with a slightly different discrimination training, a moderate peak shift effect was obtained. The present experiments show for the first time area and peak shift effects with rats across spatial locations when working with a navigation task.
Key words:
Morris pool, Rats, Peak and area shift effects, Landmarks, Navigation
Full Article
More articles in this volume
- [291-300] Consummatory Successive Negative Contrast in Young and Middle-aged Rats [Contraste Negativo Sucesivo Consumatorio en Ratas J?venes y Maduras]
- [301-312] Previous Blocking Trials Impede Learning About the Added CS During Compound Conditioning Trials with an Intensified US [Los Ensayos de Bloqueo Previos Impiden el Aprendizaje de un CS A?adido Durante Ensayos Compuestos de Condicionamiento con un US Intensificado]
- [331-342] Discriminaci?n Condicional de la Propia Conducta en Palomas: el Papel de la Longitud de la Conducta-muestra [Conditional Discrimination of One Own?s Behavior in Pigeon: the Role of the Lenght of the Behavior-sample]
- [343-364] Alcoholismo y Ansiedad: Modelos Animales [Alcoholism and Anxiety: Animal Models]
- [365-379] Mindreading in a Dog: an Adaptation of a Primate 'Mental Attribution' Study [Lectura de la Mente en Perros]
- [381-396] Modelos Te?ricos de Psicoterapia en Argentina: Actitudes y Creencias de sus Adherentes [Theoretical Models of Psychoterapy in Argentina: Attitudes and Beliefs of Psychologists]
- [397-416] A Preliminary Investigation of the Use of Acceptance and Commitment Therapy in Group Treatment for Social Phobia [Investigaci?n Preliminar del Uso de la Terapia de Aceptaci?n y Compromiso en el Tratamiento Grupal de la Fobia Social]
- [417-423] Factor de Impacto de las Publicaciones Espa?olas de Psicolog?a Utilizando un Amplio Rango de Revistas Fuente [Impact Factor of Spanish Psychology Journals Using a Wide Range of Source Journals]
- [425-444] Una Revisi?n de la Alteraci?n de las Propiedades Reforzantes de los Eventos en Humanos [Alteration of the Consequential Properties of the Events in Humans: A Review]