Statistical analysis revealed a highly significant effect of light phase (χ 2 = 56.81, p < 0.001), whereas no significant main effect of treatment was detected (χ 2 = 0.68, p = 0.71), nor was a significant treatment × light interaction observed (χ 2 = 10.25, p = 0.115).
Although group level differences in tap evoked response magnitude were observed in the present study, they did not reach statistical significance, indicating that any neurobehavioral effects in Co or MCN groups at 96 h post-exposure are subtle and variable rather than robustly expressed at the population level under the tested concentrations and exposure conditions. 3.7.