in this study we traced the afferent and efferent connections of the inferior region of area 6 by injecting small amounts of wheat germ agglutinin conjugated to horseradish peroxidase ( wga-hrp ) and fluorescent tracers ( fast blue and diamidino yellow ) into restricted parts of inferior area 6 and in physiologically determined fields of area 4 .
C0019941
horseradish peroxidase
C0078473
wga-hrp