Tonic functions of sensory system

Tonic Functions of Sensory Systems, edited by Bernice M. Wenzel and H. Philip Zeigler (published as Annals of the New York Academy of Sciences, v. 290, 1977), presents a foundational collection of papers exploring the idea that sensory systems have a dual role: not only conveying specific information about stimuli (phasic) but also maintaining a constant, baseline input necessary for arousal, b…