RESUMO
An experiment was conducted to investigate the claim that human performance may be enhanced by exposure to artificially high concentrations of negative air ions. 16 subjects, only half of whom were informed of the ion level in each session, performed reasoning, psychomotor, and memory-search tasks. Despite adequate control of confounding variables, no clear evidence was obtained in support of the view that negative ions in the air influence performance.
Assuntos
Ionização do Ar , Resolução de Problemas , Tempo de Reação , Adulto , Aprendizagem por Discriminação , Humanos , Masculino , Rememoração Mental , Destreza Motora , Reconhecimento Visual de ModelosRESUMO
Multidimensional scaling of subjective similarity estimates for colors varying extensively in Munsell hue, value, and chroma produced a configuration that concurred with the postulated organization of Munsell color space, and indicated step-size relationship between attributes. Implications for the determination of color difference are discussed.
