τD values, or the change in saturation time with logarithmically increasing stimulus intensities, for the various experiments simulated herein.
Absence of binocular summation in high contrast vernier acuity and reduction of summation with increasing stimulus energy for an orientation discrimination task were explained similarly using response saturation [ 40, 41].
Thus, the strongest log linear correlation of the response to increasing stimulus intensity was found for the early poststimulus AUC.
Starting from the resting state, the system retains low level of Bax activation for increasing stimuli, until a threshold is reached (SN2), whereby the level of activated Bax/Bak switches (AcBax) to the higher stable state in an all-or-none fashion.
Thus the differential effects of increasing stimulus speed could be enhanced for looming sounds over receding much like looming and receding sounds of the same speed produce differential neural responses.
Local bone resorption, by reducing structural volume, concentrates applied forces in the remaining bone; this leads to increased strain and presumably increases the stimulus for local bone repair.
"Policy responses to these developments have been rapid, wide-ranging, and frequently unorthodox, but were too often piecemeal and have failed to arrest the downward spiral," the IMF says, calling for tougher action to clean up the bad assets of banks around the world, and increased fiscal stimulus for governments that are not already heavily in debt.
Interestingly, RANKL expression is subsequently increased, generating the stimulus for osteoclast activity, as confirmed also by the later rise in the expression of the bone resorption-related genes.
Economists note that inflation argues against an increase in stimulus, for fear of overheating the economy.
According to former Obama administration chief economist Christina Romer and David Romer of the University of California, Berkeley, even permanent transfer-payment increases provide stimulus for only a few months, and the effect does not spread to employment.
