Increasing the concentration of ions in solution had only modest effects on the discrimination between the dianionic and monoanionic substrates.
27 Over and above the most basic model (short prior duration, severe inflammation, fever), the choice of additional variables to include (pus and 'absence of cough and coryza') was determined by consensus, including a consideration of the strength of prior evidence, but omission of key variables or substitution did not have major effects on the discrimination.
Both masking conditions produced a memory masking effect on the F1 F2 discrimination task in all participants, significant at the p<0.05 level (t(2)>2.92, one-tailed p-value).
These are cognitive changes arising from differences in outcome [1], [17] and they have a profound effect on the honeybees' discrimination performance.
The ratio had a stronger effect on the temporal discrimination task, in which performance was worse than in the other two tasks as a function of ratio.
The first part, which we label the effect through the level of discrimination, reflects the combined effect on discrimination through preference-based discrimination and/or a perceived difference in the mean of unobserved variables.
Although Experiments 2A and 2B appear to show a dichotomy between categorization and geometrical discrimination, Barton, Keenan, and Bass (2001) found that the effect of inversion on the discrimination of spatial relations decreases with increased viewing time.
To investigate this discontinuity between facial feature distance estimation and general perception and recognition, we assessed the effect of inversion on the discrimination of differences in facial compression and elongation or expansion using geometrically distorted faces.
Even though there was no significant effect of drugs on the discrimination ratio during the 1-min block (F 2,32)=0.57, p=0.56) only the performance of the control group was better than chance (t(11)=3.23; p<0.05).
