Abstract：
:Whereas many non-human species have been demonstrated to visually complete partly occluded figures, pigeons have been repeatedly failed to do so. We asked whether this failure reflected the pigeons' lack of perceptual process for completion or their decision among completed and non-completed figures. Four pigeons searched for a red lozenge target having one of its four contours punched in a rectangular edge out among three intact lozenges. All of these four stimuli had a white square next to them. After obtaining consistent search performances, the pigeons were tested with the punched target in a variety of locations relative to the white square, including right at the edges. Humans tested in the same task needed longer times before detecting the target when the square was placed right at the punched edge, suggesting automatic completion in humans. In contrast, the pigeons showed no similar difficulty. This result has two important suggestions: first, pigeons fail to complete partially occluded objects at the perceptual level, and second, this lack of completion is sometimes advantageous for them.
journal_name
Behav Processesjournal_title
Behavioural processesauthors
Fujita K,Ushitani Tdoi
10.1016/j.beproc.2005.01.003keywords:
subject
Has Abstractpub_date
2005-04-29 00:00:00pages
59-66issue
1eissn
0376-6357issn
1872-8308pii
S0376-6357(05)00010-0journal_volume
69pub_type
杂志文章abstract：:We investigated whether the development of spatial behaviour of the domestic chicken is influenced by light exposure of the embryo, as is known to be the case for some other lateralized visual functions. Ninety-six chicks were incubated in the dark or exposed to light during the final days of incubation. Half of the c...
journal_title：Behavioural processes
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journal_title：Behavioural processes
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abstract：:The effect of environment on the maturation of sand digging behaviour in cuttlefish was studied. Sand digging behaviour of cuttlefish individually reared on sand was daily observed in their rearing tanks (first study). Other cuttlefish were individually reared from hatching to 2 weeks of life in different conditions (...
journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2011.01.007
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2008.07.004
更新日期：2008-11-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章
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更新日期：2012-11-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/0376-6357(95)00062-3
更新日期：1995-12-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章,评审
doi：10.1016/j.beproc.2018.11.001
更新日期：2019-01-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/0376-6357(90)90015-8
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2015.01.011
更新日期：2015-08-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2018.09.007
更新日期：2018-12-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2015.08.010
更新日期：2015-11-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2013.04.007
更新日期：2013-07-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2012.01.011
更新日期：2012-06-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/0376-6357(95)00076-3
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pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章
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更新日期：2008-01-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2015.11.019
更新日期：2016-03-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
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更新日期：2018-09-01 00:00:00
abstract：:Discounting occurs when the subjective value of an outcome decreases because its delivery is either delayed or uncertain. Discounting has been widely studied because of its ubiquitous nature. Research from our laboratory has demonstrated that rates of discounting are systematically altered by several different factors...
journal_title：Behavioural processes
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更新日期：2014-05-01 00:00:00
