Twentyman, C T <br/><br/>
Instructed heart rate control. Effects of varying feedback frequency and timing.  [electronic resource] 

 -  Biofeedback and self-regulation  Dec 1980 
 - 417-26 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0363-3586 
<br/><br/><label>Standard No.: </label>10.1007/BF01001357  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biofeedback, Psychology<br/>Galvanic Skin Response<br/>Heart Rate<br/>Humans<br/>Reinforcement Schedule<br/>Respiration