Evidence for a relationship between daily caffeine consumption and accuracy of time estimation

Abstract

The present study examined the relationship between regular caffeine consumption and time estimation. Sixty participants (aged 18-57 years, mean 24 years) completed a 47 s time estimation exercise and questionnaires related to daily caffeine consumption and perceptions of time. We hypothesized that the effects of caffeine on time estimation would follow a U-shaped pattern such that individuals who reported moderate amounts of daily caffeine would be more accurate in their perceptions of time than would those who reported high amounts of caffeine intake or no daily caffeine consumption. Timing accuracy was computed by dividing participant-reported time by actual time (47 s). Timing accuracy followed a U-shaped curve such that those respondents who reported 'low' daily caffeine consumption (< or = 135 mg/day, n = 24) were the most accurate in their time estimates (mean= 44.2 s). Individuals who reported no caffeine (mean= 69.3 s; n= 7) or 'high' daily caffeine consumption (mean=56.2 s; >135 mg/day, n = 28) were less accurate in their time estimates [F(2, 56)= 3.34, p< 0.05]. Findings suggest that 'low' daily caffeine consumption may enhance time estimation accuracy above that of 'high' or no daily caffeine consumption.

Voltammetric Bioassay of Caffeine using Sensor Implant

“…In medical chemistry, it is related to brain nerve activation (Leon et al 2005;Nikolic et al 2003), central nervous stimulation (Wu et al 2006), and human behavior (Meyer and Caston 2004). Moreover, it influences the release of catecholamines and glucocorticoids (McClellan Stine et al 2002), affects anxiety convulsive activity (Jain et al 2005) and non-malignant skin cancer (Batchelder et al 2004), and plays a role in tumor prevention (Lee et al 1997), and decreases DNA damage (Schwartz et al 2005). It is also found in trace levels in the skin or bodily fluids.…”