high noradrenergic state may reduce the threshold of the hippocampus to stimuli, thus leading to increased distractibility, a "merger" of the two theories .
One set of interneurons responds phasically and regulates the contractions in LM, and another responds tonically
and produces the peristaltic wave (Winlow and Laverack, 1972a, b).
During other phases of the estrous cycle, LH is released tonically
25) The transversus abdominus has been shown to contract tonically
as it produces constant tension that is maintained at a low level.
Siegel (4) hypothesises that orexin's major role is to facilitate motor activity tonically
and phasically in association with motivated behaviours and to co-ordinate this facilitation with the activation of attentional and sensory systems.
Gene expression of endothelin-1, a potent vasoconstrictor, is upregulated in sepsis models and implicated in the shift towards a more tonically
Three additional small but crucial components of basal ganglia shown in figure 2 are subthalamic nucleus (STN), tonically
active cholinergic neurons (TANs), and substantia nigra pars compacta (S[N.
025 [micro]g/kg/day delivered tonically
by an Alzet pump (Markey et al.