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The Effects of Initial Self-Control Exertion and Subsequent Glucose Consumption on Search Accuracy by Dogs

Resumen Previous reports have suggested that canine self-control is sensitive to fatigue and that an initial act of behavioral inhibition (sit-stay 10 min) relative to a control condition (cage 10 min) can deplete self-control, increase risk-taking, and reduce subsequent persistence on a puzzle task. Glucose, but not a calorie-free placebo drink has been shown to replenish this depletion. The current study sought to complement and extend these findings by examining whether initial exertion of self-control would also affect canine working memory as measured by search accuracy on a subsequently administered invisible displacement rotation task. The results evidenced that initial self-control exertion (relative to the control condition) resulted in poorer search accuracy. The consumption of glucose did not have a replenishing effect. If anything, glucose was associated with poorer search accuracy. Evidencias previas han sugerido que el auto-control canino es sensible a la fatiga y que un acto inicial de inhibicion conductual (permanecer quieto y sentado 10 min) puede agotar el auto-control, incrementar las conductas de riesgo y reducir la persistencia en un rompecabezas posterior. La administracion de glucosa, pero no la de un placebo libre de calorias, ha mostrado revertir esta deplecion. El presente estudio pretende complementar y extender estos hallazgos examinando si el esfuerzo inicial de auto-control puede afectar tambien a la memoria de trabajo en los perros medida como la eficacia de busqueda en una subsecuente tarea de rotacion de desplazamiento invisible. Los resultados muestran que el esfuerzo inicial de auto-control (relativo a la condicion control) resulto en una menor eficacia de busqueda. El consumo de glucosa no tuvo un efecto de reversion del agotamiento. Si tuvo algun efecto, la glucosa estuvo asociada a una menor precision de busqueda.