... stripes were used as moving stimuli, in front of all 29 grey backgrounds. The results indicate that C. salei is not able to discriminate the coloured stimuli from distinct shades of grey. It is therefore evident that the movement-detecting system in this spider appears to be colour blind. REFERENCES...

... 1997 ©The Company of Biologists Limited 1997 locust Locusta migratoria DCMD identified neurone movement detection direction selective visual system motion in depth The image of a rapidly approaching object is a powerful stimulus eliciting avoidance reactions in many...

.... The fCO measures the position and movement of this joint (e.g. Bässler, 1965 , 1993 ; Burns, 1974 ; Usherwood et al . 1968 ; Zill, 1985 ). 04 01 1994 © 1994 by Company of Biologists 1994 movement detection chordotonal organ joint control walking system Cuniculina impigra...