Fig 3.
Mean (±SEM) cocaine deliveries are compared when water (A) or SACC (B) was concurrently available with cocaine are presented for 5 unit prices (2.5, 5, 10, 20, and 40 responses/mg) and 3 sex/female hormonal phase conditions: males (filled triangles) and females in the follicular phase (filled circles), and females in the luteal phase (open circles). Within cocaine + water (A) and cocaine + SACC (B) conditions, ** indicates that females in the follicular phase > males p< 0.01, and - - indicates that females in the follicular phase > females in the luteal phase p<0.01. There were also significant differences across the A and B conditions when cocaine was available with concurrent water (A) or SACC (B): oo = p< .01 (Coc with Water > Coc with SACC) in females in the follicular phase, # =p < 0.05, and ++ = p < 0.01 in males.