Seki, Y., Okanoya. K. (2006) Effects of visual stimulation on the auditory responses of the HVC song control nucleus in anesthetized Bengalese Finches. Ornithological Science, 5, 39-46.
Seki, Y., Okanoya, K. (2008) Sex differences in the audiovisual discrimination learning by Bengalese finches (Lonchura striata var. domestica). Journal of Comparative Psychology 122(1), 26-34.
Seki, Y., Okanoya, K. (2008) Functional evidence for internal feedback in the songbird brain nucleus HVC. Neuroreport 19(6):679-82.
Seki, Y., Suzuki, K, Takahasi, M, Okanoya, K. (2008) Song production pattern of the Bengalese finch (Lonchura striata var. domestica) is consistent with the statistical "second-order" song unit. Journal of Comparative Physiology A; Neuroethology, Sensory, Neural, and Behavioral Physiology 194(6):533-43
Seki, Y., Okanoya, K. (2009) The effect of sound location in a song discrimination task in Bengalese finches (Lonchura striata var. domestica). Journal of Ethology 27307-411