Central course of photic input in the ventral nerve cord of scorpion (Heterometrus fulvipes)

Summary The course of the photic input from the metasoma in the ventral nerve cord of scorpion was studied. The input was found to influence the activity in a large number of neurons in the nerve cord. The phenomenon of contralateral stimulation of units at various levels of the nerve cord has heen demonstrated.Acknowledgments. The electronic equipment used for the study was obtained with the help of Prof.T. H. Bullock and the late Prof.K. Pampapathi Rao who initiated me into this field of study, through a research grant from the USAFOSR to them. I am highly grateful to Prof.Bullock for permitting me to use the equipment. I am also grateful to Dr.A. R. Kasturi Bai for her kind encouragement and Dr.S. A. T. Venkatachari for his helpful comments.