Title :
A digital feedback controller application: a light response control system to reveal photoreceptor adaptation
Author :
Djupsund, K. ; Kouvalainen, E. ; Jarvilehto, M. ; Weckstrom, Matti
Author_Institution :
Dept. of Physiol. & Zool., Oulu Univ., Finland
Abstract :
A new digital feedback application for the study of sensitivity characteristics of biological photoreceptors is presented. The voltage response of a cell is controlled by feeding back to the stimulating LED-via the controller-the recorded membrane voltage. The light intensity changes represent the change in the sensitivity of the photoreceptors, revealing the time course of adaptation.
Keywords :
biological techniques and instruments; controllers; eye; feedback; biological photoreceptors; cell voltage response; digital feedback controller application; light intensity changes; light response control system; photoreceptor adaptation; recorded membrane voltage; sensitivity characteristics; stimulating LED; Adaptive control; Biomembranes; Cells (biology); Control systems; Feedback; Frequency; Light emitting diodes; Lighting control; Photoreceptors; Voltage control; Adaptation, Physiological; Algorithms; Animals; Diptera; Equipment Design; Evaluation Studies as Topic; Feedback; Photoreceptors; Signal Processing, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
