caa a22 4500 463175840 CHVBK 20180406164825.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10336-007-0162-0 doi (NATIONALLICENCE)springer-10.1007/s10336-007-0162-0 Pepperberg Irene Department of Psychology, Harvard University, Wm James Hall, 33 Kirkland St, 02138, Cambridge, MA, USA aut Individual differences in grey parrots ( Psittacus erithacus ): effects of training [Elektronische Daten] [Irene Pepperberg] Grey parrots (Psittacus erithacus) have been shown to exhibit many complex cognitive and communicative abilities in a laboratory setting. The parrots' successes likely rely on two factors: An underlying neurological architecture that supports complex information processing, and training that enables them to express their capacities in ways measurable by human researchers. Individual differences likely can affect both factors, in terms of biology for the former and in response to the quality of the latter, but the quality of the latter can be experimentally controlled. Although training my parrots to communicate in English speech generally enables me to demonstrate their advanced cognitive capacities, occasionally such training has interfered with success on tasks requiring a specific type of complex information processing. For two cohorts of parrots, one with and one without extensive communicative training, I describe here the results for two different tasks. In one task—the ability to segment English speech sounds and demonstrate phonological awareness—communication training, as expected, enhanced success [IM Pepperberg (2007) Lang Sci 29:1-13]. In the other task—retrieval of an item suspended from a long string to demonstrate means-ends understanding—communication training unexpectedly inhibited success [IM Pepperberg (2004) Anim Cogn 7:263-266]. Individual differences can therefore be expressed in ways that are not necessarily predictable and that encourage further experimentation. Dt. Ornithologen-Gesellschaft e.V., 2007 Grey parrots nationallicence Individual differences nationallicence Insight nationallicence Phonological awareness nationallicence Journal of Ornithology Springer-Verlag 148(2007-12-01), 161-168 0021-8375 148<161 2007 148 10336 https://doi.org/10.1007/s10336-007-0162-0 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10336-007-0162-0 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Pepperberg Irene Department of Psychology, Harvard University, Wm James Hall, 33 Kirkland St, 02138, Cambridge, MA, USA aut NATIONALLICENCE 773 0- Journal of Ornithology Springer-Verlag 148(2007-12-01), 161-168 0021-8375 148<161 2007 148 10336 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer