All patients underwent functional magnetic resonance imaging during a parametric 'n-back' task, involving monitoring of dots in particular locations on a screen at a given delay from the original occurrence, twice: at baseline and 12 weeks post-rivastigmine/placebo treatment.
Occurrence probabilities were obtained by transposing the original occurrence probability matrix determined by edge-swapping as described above.
Subjects were asked to monitor the locations of dots (presentation time: 440 ms; interstimulus interval: 1500 ms) within a diamond-shaped box on the screen at a given delay from the original occurrence (0-, 1-, or 2-back) (Fig. 1).
Participants monitor the locations of dots at a given delay of the original occurrence (0-, 1-, or 2-back) and respond by moving a joystick corresponding to the location of the current or previously presented dot.
Although it has been >30 years since the eradication of smallpox, the unearthing of well-preserved tissue material in which the virus may reside has called into question the viability of variola virus decades or centuries after its original occurrence.
The task (14), modified from Callicott et al. (20), involved monitoring locations of dots (presentation time: 450 msec; interstimulus-interval: 1500 msec) within a diamond-shaped box on the screen at a given delay from the original occurrence (0-back, 1-back, or 2-back; Figure 1).
During 1990 2000, population decline continued in the areas of original occurrence but a new concentration of X. laevis was found in 1994 in an isolated pond at Croescwtta farm (Fig. 1k): mark-recaptures over 2 years recorded >900 individuals, most resulting from spawning in 1993 (Measey 2001).
For this purpose, KO selected a large sample of the original all-occurrence database of the habituated males (N = 877 calls, the remaining 17.8% of the entire dataset were excluded because of substandard recording quality).
Occasionally these naturally occurring substances become more concentrated or accessible through human activities such as mining and nuclear energy production, resulting in greater potential for exposure than their original natural occurrence would suggest.
The equivalent occurrence probability is equal to the summation of the original sea states' occurrence probability within the divided block.
When we applied deductive suitability models, the total area of remaining habitat varied from 83% to 12% of the original extension of occurrence.
