= Neophobia
<Neophobia> is avoidance of, or inhibited response to, unfamiliar stimuli. In <animal behaviour>, it is investigated through specified responses such as approach or feeding in a <novel-object test>. An unfamiliar object near food and an unfamiliar food itself are different stimulus manipulations, so the task needs to be stated.
One experiment compared domesticated <Bengalese finches> with <white-rumped munias>, their wild ancestor. All groups fed in control conditions; with novel objects present, six of seven Bengalese-finch groups and none of six munia groups fed during the observation period.<Effects of domestication on neophobia: A comparison between the domesticated Bengalese finch and its wild ancestor, the white-rumped munia by Kenta Suzuki and others>[Responses of BFs and WRMs to novel objects]{ref} The observation measures behavioural disruption by novelty. It does not directly read an animal's subjective experience or isolate a unique inherited cause of the difference.
A constructed <feeding latency> example shows why matched conditions help. One animal feeds after $30\,\mathrm s$ in familiar conditions and $90\,\mathrm s$ with a novel object, a $60\,\mathrm s$ increase. Another changes from $120$ to $150\,\mathrm s$, a $30\,\mathrm s$ increase. The second has the longer raw delay but the smaller novelty-associated change.
Observation duration matters too. If an animal has not fed when recording ends, its latency is subject to <censoring>; it is not a measured infinite delay. Prior exposure, hunger and <social group> context can also affect the response. These details make the behavioural measurement interpretable and reproducible.
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