We believe that the failure to model the Blocks World task stems from the requirement in ACT-R that all actions must be counted as a binary success or failure.
The difficulty of the training task stems from the fact that a finite number of examples are available, while the resulting classifier should be optimal for all possible objects: there is a risk that the classifier classify correctly all available examples but perform poorly on other objects of the class.
On this possibility, the MCE that we observed in our study with novel primes would compel the conclusion that the MCE in our task stemmed from the overlap in processing of central representations.
Our interest in the non-word repetition task stemmed from findings by Bishop et al. (1996) that twins with SLI had deficits in performing the task even after the outward manifestations of their language impairments had resolved.
As one would expect, the easiest optimization tasks stem from the CO scenario, since in this scenario all the system variables are directly observed.
However, an alternative possibility, namely, that AC subjects' difficulty with the task stemmed to some extent from the sequential handling of sensorimotor information, cannot be fully excluded.
The increased provocative effect of combined cognitive and motor tasks could stem from the fact that such tasks elicit activation with similar frequencies in both, the cognitive and the motor networks, which in turn increases the likelihood of interferences between them.
The group, which oversees about 2,500 events each year, has assembled a task force to investigate safety issues stemming from Humble's death, so that "the federation does not find its hands tied in the future when a matter of animal welfare like this presents itself," Mr. Long said.
In a 1993 case stemming from Hillary Clinton's appointment to run a federal task force on health-care reform, a federal judge provided some support for this argument.
stemming from a personal feud.
