Reward history modulates visual attention in an avian model
Anim Cogn. 2023 Jul 21. doi: 10.1007/s10071-023-01811-z. Online ahead of print.ABSTRACTAttention can be biased towards previously reward-associated stimuli even when they are task-irrelevant and physically non-salient, although studies of reward-modulated attention have been largely limited to primate (including human and nonhuman) models. Birds have been shown to have the capacity to discriminate reward and spatial cues in a manner similar to primates, but whether reward history involuntarily affects their attention in the same way remains unclear. We adapted a spatial cueing paradigm with differential rewards to investig...
Source: Animal Cognition - July 21, 2023 Category: Zoology Authors: Ming-Ray Liao Mason H Dillard Jason L Hour Lilia A Barnett Jerry S Whitten Amariani C Valles J Jill Heatley Brian A Anderson Jessica L Yorzinski Source Type: research

Slowly walking down to the more food: relative quantity discrimination in African spurred tortoises (Centrochelys sulcata)
This study examined the effects of ratio and number size on relative quantity discrimination in African spurred tortoises (Centrochelys sulcata). To assess these effects, tortoises were presented with trays containing favored food pieces in all possible number combinations between 1 and 7. The tortoises had to approach the tray they perceived as having the larger quantity. If correct, they received one piece of food as reinforcement. The results revealed that relative quantity discrimination was influenced by the ratio between the numbers of pieces, with performance improving as the ratio between the numbers increased. Thi...
Source: Animal Cognition - July 21, 2023 Category: Zoology Authors: Masaki Tomonaga Daiki Haraguchi Anna Wilkinson Source Type: research

Reward history modulates visual attention in an avian model
Anim Cogn. 2023 Jul 21. doi: 10.1007/s10071-023-01811-z. Online ahead of print.ABSTRACTAttention can be biased towards previously reward-associated stimuli even when they are task-irrelevant and physically non-salient, although studies of reward-modulated attention have been largely limited to primate (including human and nonhuman) models. Birds have been shown to have the capacity to discriminate reward and spatial cues in a manner similar to primates, but whether reward history involuntarily affects their attention in the same way remains unclear. We adapted a spatial cueing paradigm with differential rewards to investig...
Source: Animal Cognition - July 21, 2023 Category: Zoology Authors: Ming-Ray Liao Mason H Dillard Jason L Hour Lilia A Barnett Jerry S Whitten Amariani C Valles J Jill Heatley Brian A Anderson Jessica L Yorzinski Source Type: research

Slowly walking down to the more food: relative quantity discrimination in African spurred tortoises (Centrochelys sulcata)
This study examined the effects of ratio and number size on relative quantity discrimination in African spurred tortoises (Centrochelys sulcata). To assess these effects, tortoises were presented with trays containing favored food pieces in all possible number combinations between 1 and 7. The tortoises had to approach the tray they perceived as having the larger quantity. If correct, they received one piece of food as reinforcement. The results revealed that relative quantity discrimination was influenced by the ratio between the numbers of pieces, with performance improving as the ratio between the numbers increased. Thi...
Source: Animal Cognition - July 21, 2023 Category: Zoology Authors: Masaki Tomonaga Daiki Haraguchi Anna Wilkinson Source Type: research

Reward history modulates visual attention in an avian model
Anim Cogn. 2023 Jul 21. doi: 10.1007/s10071-023-01811-z. Online ahead of print.ABSTRACTAttention can be biased towards previously reward-associated stimuli even when they are task-irrelevant and physically non-salient, although studies of reward-modulated attention have been largely limited to primate (including human and nonhuman) models. Birds have been shown to have the capacity to discriminate reward and spatial cues in a manner similar to primates, but whether reward history involuntarily affects their attention in the same way remains unclear. We adapted a spatial cueing paradigm with differential rewards to investig...
Source: Animal Cognition - July 21, 2023 Category: Zoology Authors: Ming-Ray Liao Mason H Dillard Jason L Hour Lilia A Barnett Jerry S Whitten Amariani C Valles J Jill Heatley Brian A Anderson Jessica L Yorzinski Source Type: research