Our analysis clarified how these dimensions triggered reasoning strategies such as running mental simulations or making design suggestions, ranging from 'go/kill' decisions to loose recommendations to continue without directional steer.
Having set a heading by whatever means, animals, like aviators, must make continued use of directional information in order to maintain that heading.
In contrast to grid cells, head direction cells continued to show the same directional tuning in the two compartments, regardless of experience.
Importantly, both species composition and stand structure are likely to continue to undergo directional changes over decadal timescales, independent of any effects of climate change.
As David Bordwell describes, technological improvements continued at a swift pace: "Between 1932 and 1935, [Western Electric and RCA] created directional microphones, increased the frequency range of film recording, reduced ground noise ... and extended the volume range".
The insects continue to exhibit this directional pattern even after one of the tympanal organs has been removed.
These evolutionary consequences are often difficult to reverse; in some cases, the reduction or even cessation of fishing does not lead to rapid population recovery, particularly if directional selection continues over protracted periods as fisheries continue to harvest the largest available individuals (Conover 2000; Stockwell et al. 2003).
As for the cladogenetic species, one would predict less genetic divergence (distinctness) on the younger island in comparison with species on the older island, because directional selection continues over time and refines the genetic profile of each species as it adapts to the particular ecological zone.
Beyond promoting co-expression, bi-directional transcription from a single promoter may also serve as a positive feedback loop to support continued expression.
"But since the degree of moderation in economic growth is still an open question at this juncture," he continued, "the bond market seems to be anxiously lying in wait in anticipation of Friday's labor market report for September, from which to take its directional cues".
