Further analysis of perception of the standard Müller-Lyer figures in pigeons (Columba livia) and humans (Homo sapiens): effects of length of brackets
Journal of Comparative Psychology (2009) - Comment
pubmed: 19685970  doi: 10.1037/a0016215  issn: 0735-7036  issn: 1939-2087 

Noriyuki Nakamura, Sota Watanabe, Kazuo Fujita