Abstract:
:Sensitivity to time was investigated to test the linear-timing hypothesis. A long duration was adjusted until accuracy was 75% correct for a short duration in a two-choice procedure. Short durations (2, 4, 6, 8, 10, 12, 14, 16 and 18 s) were selected from previous research that suggests that sensitivity to time is nonlinear in this range. Rats were tested with a single short interval (Experiment 1, n=13) or a random order (Experiment 2, n=7). A local maximum in sensitivity (d' from signal detection theory) was observed at approximately 8-12 s. Sensitivity to time was reliably correlated (r's=0.759-0.941) with previous data. Weber fractions exhibited a U-shape and were negatively correlated with sensitivity to time (r=-0.800). These results provide additional evidence that sensitivity to time is nonlinearly related to physical time.
journal_name
Behav Processesjournal_title
Behavioural processesauthors
Crystal JDdoi
10.1016/s0376-6357(01)00167-xkeywords:
subject
Has Abstractpub_date
2001-06-13 00:00:00pages
35-49issue
1eissn
0376-6357issn
1872-8308pii
S0376-6357(01)00167-Xjournal_volume
55pub_type
杂志文章abstract::Foraging in a variable environment presents a classic problem of decision making with incomplete information. Animals must track the changing environment, remember the best options and make choices accordingly. While several experimental studies have explored the idea that sampling behavior reflects the amount of envi...
journal_title:Behavioural processes
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journal_title:Behavioural processes
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journal_title:Behavioural processes
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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.2006.07.001
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