Hunger Center

Japanese: 空腹中枢 - くうふくちゅうすう
Hunger Center

...Physiologically, it is defined as the desire to eat a particular food, acquired largely through learning or conditioned reflexes. Similar terms include hunger and starvation, but these refer to the desire to eat food in general, mainly solid food, resulting from a general lack of food intake, and strictly speaking should be distinguished from appetite. However, since appetite is generally often used to mean hunger, here we will treat appetite and hunger as synonyms and explain them below.
[The significance of appetite (= hunger) and satiety]
All animals have basic, unlearned, innate instincts (eating, drinking, sex, etc.) that are essential for the survival of the individual and the species.

*Some of the terminology explanations that refer to the "hunger center" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…生理学的には,多分に後天的に学習や条件反射によって獲得された,特定の食物を食べたいという欲求と定義される。似たような言葉に空腹感や飢餓感があるが,これらは一般的な食物摂取の不足からくる,食物一般,主として固形食物を食べたい欲求をさし,厳密には食欲とは区別すべきものである。しかし,一般に食欲といえば空腹感の意味で用いられることが多いので,ここでは食欲と空腹感を同義語として扱い,以下解説する。
【食欲(=空腹感)および満腹感の意義】
 すべての動物は個体および種族の維持に基本的な学習によらない生得的に備わった本能(食欲,飲欲,性欲など)を有している。…

※「空腹中枢」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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