clearly significantp < 0.001
Moreover, the second-step modeling revealed a clearly significant full-null model comparison (χ 2 = 185.6, df = 69, p < 0.001) indicating that cycle number and/or species (monkey or human) and/or stage (discrimination or reversal) and/or feature (color, direction, or shape) and/or any of the interactions between them or with training type significantly contributed to the response.