UNASSIGNED: Self-control tasks appear to deplete a limited resource resulting in reduced subsequent self-control performance; a state of ego depletion. Evidence of reduced peripheral @entity413 by exertion of self-control, and attenuation of ego depletion by @entity1735 metabolism underpins the proposition that this macronutrient provides the energetic source of self-control. However, the demonstration of positive, non-metabolic effects on ego depletion when merely sensing @entity3363 orally contradicts this hypothesis. Recent studies have also failed to support both metabolic and non-metabolic accounts. The effects of ingesting or rinsing a @entity1735 ( @entity969 ) and an artificially sweetened ( @entity12442 ) solution on capillary blood and interstitial @entity413 , and depleted self-control performance were examined in older adults. Forty, healthy, adults (50-65years) ingested and rinsed @entity969 and @entity12442 solutions in a 2 (method)*2 (source), fully counterbalanced, repeated measures, crossover design. Capillary blood and interstitial @entity413 responses were assayed. Depleted self-control performance (induced by the Bakan visual processing task) on an attention switch task was assessed under each study condition. Ego depletion had no consistent effects on peripheral @entity413 levels and no significant effects of ingesting or rinsing @entity969 on self-control were observed. The act of rinsing the solutions, independent of energetic content, resulted in a small, non-significant enhancement of performance on the attention switch task relative to ingesting the same solutions (RT: p=.05; accuracy: p=.09). In conclusion, a metabolic account of self-control was not supported. Whilst a positive effect of rinsing on depleted self-control performance was demonstrated, this was independent of energetic content. Findings suggest @entity413 is an unlikely physiological analogue for self-control resources.

No effects of ingesting or rinsing XXXX on depleted self-control performance.

@entity12442 :: ('MESH:C026285', 'Chemical') :: ['sucralose'] @entity1735 :: ('CHEBI:16646', 'Chemical') :: ['carbohydrate'] @entity969 :: ('MESH:D013395', 'Chemical') :: ['sucrose'] @entity413 :: ('MESH:D005947', 'Chemical') :: ['glucose'] @entity3363 :: ('MESH:D002241', 'Chemical') :: ['carbohydrates']
@entity969 :: (MESH:D013395,Chemical) :: ['sucrose']
