Interestingly, later onset smokers don't appear to have the same level of difficulty with frontally mediated tasks and appear more similar to those who have never smoked.
Secondly, parietal functioning improves with age, as does ventral functioning, providing evidence for development in all visually mediated tasks.
The concept of development in all visually mediated tasks with increasing age received support from the results which indicated that younger (RA) normally reading children showed inferior performance compared with the older (CA) normally reading children on all tasks.
For example, while prefrontal DA is central to working memory [Brozoski et al., 1979[, experimental lowering of serotonin has little effect on prefrontally mediated tasks, but does impair learning [Park et al., 1994; Clark et al., 2005; Talbot et al., 2006[.
Second, we review the evidence for gene-mediated task specialization in individual workers, and show how selection on these genes can affect phenotypes at various levels of biological organization.
In particular, in prior work we have argued that phasic DA responses occurring to task cues may serve a gating function within lateral PFC, enabling the effective updating and maintenance of PFC-mediated task goal representations [52], [53].
Animals were restrained for 60 or 120 minutes and then tested on spatial delayed alternation, a PFC-mediated task.
In recent years we have witnessed the wide-spread evolution of support tools that operate in association with the user to accomplish a range of computer-mediated tasks.
Female rats are reported to be unaffected or even enhanced by exposure to stress regimens that normally produce impairments in males on hippocampally-mediated tasks like the Y-maze [ 19] and radial arm maze [ 20].
Visual systems are particularly amenable to molecular evolutionary analysis not only because of the diversity of light environments and visually-mediated tasks in which vision may be required, but also because the details of the primary phototransduction cascade have been fairly well characterized.
The present findings are particularly important in light of the fact that clinically used APDs disrupt hippocampal and prefrontal cortical mediated cognitive tasks in rodents and have little or no effect on the cognitive deficits in schizophrenia patients.
