| Literature DB >> 14190250 |
Abstract
Pigeons were trained to respond to the presence or absence of human beings in photographs. The precision of their performances and the ease with which the training was accomplished suggest greater powers of conceptualization than are ordinarily attributed to animals.Entities:
Keywords: BIRDS; DISCRIMINATION LEARNING; EXPERIMENTAL LAB STUDY
Mesh:
Year: 1964 PMID: 14190250 DOI: 10.1126/science.146.3643.549
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728