Mitsuo Kitamura

Learn More
An extremely low-frequency magnetic field (ELF-MF) is generated by power lines and household electrical devices. Many studies have suggested an association between chronic ELF-MF exposure and anxiety and/or depression. The mechanism of these effects is assumed to be a stress response induced by ELF-MF exposure. However, this mechanism remains controversial.(More)
The goal of this study was to determine whether dopamine D2 and/or D1 receptors in the shell and the core of the nucleus accumbens of rats have a differential role in turning behaviour. Unilateral injection of a mixture of the dopamine D2 receptor agonist quinpirole (10 micrograms) and the dopamine D1 receptor agonist(More)
The role of dopamine D1 and D2 receptor stimulation in the production of turning behaviour in rats was studied. In rats pretreated with unilateral injections of the non-selective dopamine D1/D2 receptor antagonist, cis(Z)-flupentixol (10 micrograms/0.5 microliter), into the ventral striatum, quinpirole (1, 3, 5, 10 mg/kg i.p.), a selective dopamine D2(More)
The first goal of this study was to investigate whether turning behaviour elicited by unilateral injections of the cholinergic agonist carbachol into the shell of the nucleus accumbens differs from that elicited by similar injections into the core of this nucleus, and to compare the behavioural effects with the known effects of such injections of the(More)
The ability of GABA(A) receptors in the ventral pallidum to modulate shell-specific behavior was studied. Injections of the non-selective acetylcholine receptor agonist, carbachol (5 microg), into the shell of the nucleus accumbens elicited contraversive circling, namely turning marked by normal stepping; in contrast, injections of a mixture of dopamine(More)
The effects of pituitary adenylate cyclase activating polypeptides (PACAPs) on gastroduodenal HCO3- secretion were investigated in anesthetized rats and compared with those of vasoactive intestinal polypeptide (VIP). Under urethane anesthesia, a rat stomach mounted in an ex vivo chamber (in the absence of acid secretion) or a rat proximal duodenal loop was(More)
Extremely low-frequency magnetic fields (ELF-MFs) are generated by power lines and household electrical devices. In the last several decades, some evidence has shown an association between ELF-MF exposure and depression and/or anxiety in epidemiological and animal studies. The mechanism underlying ELF-MF-induced depression is considered to involve adrenal(More)
We present experimental data on message transmission in a free-space optical (FSO) link at an eye-safe wavelength, using a testbed consisting of one sender and two receiver terminals, where the latter two are a legitimate receiver and an eavesdropper. The testbed allows us to emulate a typical scenario of physical-layer (PHY) security such as(More)
Orthostatic changes induce temporary loss of circulatory regulation. Feedback systems react to cardiovascular alterations to compensate for the instability. To clarify the existence of anticipatory cardiovascular regulation during active standing, we continuously recorded blood flow velocity (BFV) in the common carotid artery and cerebral blood volume (CBV)(More)