Keywords: پاسخ فرکانس پروبوکسی; AL2 cluster; antennal lobe 2 cluster; PER; proboscis extension response; SRS; sucrose response score; Tβh; Tyramine-β-hydroxylase; VM cluster; ventral median cluster; Nutrition; Biogenic amine; Learning; Sucrose responsiveness; Tβh; Life span;