Vargo M, Hirsch J
Behav Neurosci. 1985 Apr;99(2):323-32. doi: 10.1037//0735-7044.99.2.323.
Selected lines of Drosophila melanogaster, bred for high and low levels of central excitatory state (CES), were used in experiments to assess the effects of artificial selection on CES expression and to identify other correlated traits that may have become manifest during selection. Results indicate that the selected lines display (a) different levels of CES, (b) differences in water responsiveness (possibly due to differences in dehydration rates), (c) no water-induced CES, and (d) no significant amounts of sensitization or conditioning. Also, CES in the high line is not dissipated by subsequent posttest stimulations. Comparing the characteristics of CES in Drosophila and in Phormia regina reveals significant species differences. The relevance to earlier P. regina work with respect to CES and conditioning is discussed.
选择了黑腹果蝇的品系,这些品系因中枢兴奋状态(CES)水平高和低而培育,用于实验以评估人工选择对CES表达的影响,并识别在选择过程中可能已显现的其他相关性状。结果表明,所选品系表现出:(a)不同水平的CES;(b)对水反应性的差异(可能由于脱水速率不同);(c)无水诱导的CES;(d)无显著量的敏化或条件作用。此外,高品系中的CES不会因后续测试后刺激而消散。比较果蝇和丽蝇蛹集金小蜂中CES的特征,发现存在显著的物种差异。还讨论了与丽蝇蛹集金小蜂早期关于CES和条件作用研究的相关性。