The Promise of Behavioral Tracking Systems for Advancing Primate Animal Welfare.

Recent years have witnessed major advances in the ability of computerized systems to track the positions of animals as they move through large and unconstrained environments. These systems have so far been a great boon in the fields of primatology, psychology, neuroscience, and biomedicine. Here, we discuss the promise of these technologies for animal welfare. Their potential benefits include identifying and reducing pain, suffering, and distress in captive populations, improving laboratory animal welfare within the context of the three Rs of animal research (reduction, refinement, and replacement), and applying our understanding of animal behavior to increase the "natural" behaviors in captive and wild populations facing human impact challenges. We note that these benefits are often incidental to the designed purpose of these tracking systems, a reflection of the fact that animal welfare is not inimical to research progress, but instead, that the aligned interests between basic research and welfare hold great promise for improvements to animal well-being.

Behaviour Change Strategies Endorsed by Gamblers Subtyped by Psychological Distress, Risky Alcohol Use, and Impulsivity.

Problem gambling is often accompanied by co-morbid psychiatric disorders and maladaptive personality traits. Subtyping gamblers based on these pervasive comorbidities has been attempted so as to aid understanding of the aetiology of problem gambling and inform treatment options. However, there has been less focus on subtyping gamblers with (past or current) or without a history of problem gambling, or on providing more specific treatment or self-help recommendations. The current study sought to subtype current-, past-, and non-problem gamblers using three common comorbidities; psychological distress, risky alcohol use, and impulsivity. Participants' endorsement of helpful behaviour change strategies was also examined by subtype membership. A total of 385 participants were recruited who had a current gambling problem (n = 128; 33%), a past gambling problem (n = 131, 34%) or never had a gambling problem (n = 126, 33%). Hierarchical cluster analysis identified distinct subtypes of current (i.e., low comorbidity, high psychological distress, risky alcohol use and high comorbidity), past (i.e., low comorbidity, high psychological distress and high comorbidity) and non-problem gamblers (i.e., low comorbidity, high psychological distress, risky alcohol use and moderate impulsivity). The most helpful change strategies for current and past gamblers were similar across subtypes (i.e., accept that gambling needs to change, remind yourself of the negative consequences). Non-problem gamblers reported the most helpful strategy as setting financial limits. This study indicated that treatment of psychological distress, risky alcohol use or impulsivity may be important for all gamblers regardless of their level of risk.

An end to insight? New Caledonian crows can spontaneously solve problems without planning their actions.

Animals rarely solve problems spontaneously. Some bird species, however, can immediately find a solution to the string-pulling problem. They are able to rapidly gain access to food hung on the end of a long string by repeatedly pulling and then stepping on the string. It is currently unclear whether these spontaneous solutions are produced by insight or by a perceptual-motor feedback loop. Here, we presented New Caledonian crows and humans with a novel horizontal string-pulling task. While the humans succeeded, no individual crow showed a significant preference for the connected string, and all but one failed to gain the food even once. These results clearly show that string pulling in New Caledonian crows is generated not by insight, but by perceptual feedback. Animals can spontaneously solve problems without planning their actions.