Numerical abilities of grey parrots: Comparisons with apes and children
نویسندگان
چکیده
منابع مشابه
Cognitive and Communicative Abilities of Grey Parrots
Grey parrots (Psittacus erithacus) solve various cognitive tasks and acquire and use English speech in ways that often resemble those of very young children. Given that the psittacine brain is organized very differently from that of mammals, these results have intriguing implications for the study and evolution of vocal learning, communication, and cognition. For 25 years, I have taught Grey pa...
متن کاملCognitive and Communicative Abilities of Grey Parrots (Psittacus erithacus)
How do we measure avian ‘intelligence’ and communicative capacities? Two decades of study on Grey parrots (Psittacus erithacus) provide more questions than answers. What is intelligence? Can we evaluate nonhumans using human tasks and definitions? Or fairly test nonhuman sensory systems? How do nonmammalian brains process information? Do avian and mammalian cognitive capacities significantly ov...
متن کاملVocal learning in Grey parrots: A brief review of perception, production, and cross-species comparisons.
This chapter briefly reviews what is known-and what remains to be understood-about Grey parrot vocal learning. I review Greys' physical capacities-issues of auditory perception and production-then discuss how these capacities are used in vocal learning and can be recruited for referential communication with humans. I discuss cross-species comparisons where applicable and conclude with a descrip...
متن کاملLeading Vet’s Investigation of Bone Deformities in Grey Parrots
In recent years an increasing number of deformed or malnourished hand-reared Grey Parrots are offered for sale in the UK. In many cases neither the breeder nor the purchaser is aware that there is anything wrong with the bird. That is not just sad but frightening – that inexperienced people are producing young parrots which might be crippled for life or have to be euthanised at an early age. Bi...
متن کاملGrey Parrot (Psittacus erithacus) numerical abilities: addition and further experiments on a zero-like concept.
A Grey parrot (Psittacus erithacus), able to quantify 6 or fewer item sets (including heterogeneous subsets) by using English labels (I. M. Pepperberg, 1994), was tested on addition of quantities involving 0-6. He was, without explicit training, asked, "How many total X?" for 2 sequentially presented collections (e.g., of variously sized jelly beans or nuts) and required to answer with a vocal ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japanese Journal of Animal Psychology
سال: 2012
ISSN: 0916-8419,1880-9022
DOI: 10.2502/janip.62.1.6