Does conditioned taste aversion learning in the pond snail Lymnaea stagnalis produce conditioned fear?

Serina Kita, Ryuji Hashiba, Saya Ueki, Yukari Kimoto, Yoshito Abe, Yuta Gotoda, Ryoko Suzuki, Eriko Uraki, Naohisa Nara, Akira Kanazawa, Dai Hatakeyama, Ryo Kawai, Yutaka Fujito, Ken Lukowiak, Etsuro Ito

研究成果: Article

17 引用 (Scopus)

抄録

In conditioned taste aversion (CTA) training performed on the pond snail Lymnaea stagnalis, a stimulus (the conditional stimulus, CS; e.g., sucrose) that elicits a feeding response is paired with an aversive stimulus (the unconditional stimulus, US) that elicits the whole-body withdrawal response and inhibits feeding. After CTA training and memory formation, the CS no longer elicits feeding. We hypothesize that one reason for this result is that after CTA training the CS now elicits a fear response. Consistent with this hypothesis, we predict the CS will cause (1) the heart to skip a beat and (2) a significant change in the heart rate. Such changes are seen in mammalian preparations exposed to fearful stimuli. We found that in snails exhibiting long-term memory for one-trial CTA (i.e., good learners) the CS significantly increased the probability of a skipped heartbeat, but did not significantly change the heart rate. The probability of a skipped heartbeat was unaltered in control snails given backward conditioning (US followed by CS) or in snails that did not acquire associative learning (i.e., poor learners) after the one-trial CTA training. These results suggest that as a consequence of acquiring CTA, the CS evokes conditioned fear in the conditioned snails, as evidenced by a change in the nervous system control of cardiac activity.

元の言語English
ページ(範囲)71-81
ページ数11
ジャーナルBiological Bulletin
220
発行部数1
出版物ステータスPublished - 2011 2
外部発表Yes

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Lymnaea
Lymnaea stagnalis
Snails
fearfulness
Fear
snails
learning
Learning
heart rate
Heart Rate
mollusc control
Long-Term Memory
conditioned behavior
nervous system
Nervous System
Sucrose
heart
sucrose

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

これを引用

Kita, S., Hashiba, R., Ueki, S., Kimoto, Y., Abe, Y., Gotoda, Y., ... Ito, E. (2011). Does conditioned taste aversion learning in the pond snail Lymnaea stagnalis produce conditioned fear? Biological Bulletin, 220(1), 71-81.

Does conditioned taste aversion learning in the pond snail Lymnaea stagnalis produce conditioned fear? / Kita, Serina; Hashiba, Ryuji; Ueki, Saya; Kimoto, Yukari; Abe, Yoshito; Gotoda, Yuta; Suzuki, Ryoko; Uraki, Eriko; Nara, Naohisa; Kanazawa, Akira; Hatakeyama, Dai; Kawai, Ryo; Fujito, Yutaka; Lukowiak, Ken; Ito, Etsuro.

:: Biological Bulletin, 巻 220, 番号 1, 02.2011, p. 71-81.

研究成果: Article

Kita, S, Hashiba, R, Ueki, S, Kimoto, Y, Abe, Y, Gotoda, Y, Suzuki, R, Uraki, E, Nara, N, Kanazawa, A, Hatakeyama, D, Kawai, R, Fujito, Y, Lukowiak, K & Ito, E 2011, 'Does conditioned taste aversion learning in the pond snail Lymnaea stagnalis produce conditioned fear?', Biological Bulletin, 巻. 220, 番号 1, pp. 71-81.
Kita S, Hashiba R, Ueki S, Kimoto Y, Abe Y, Gotoda Y その他. Does conditioned taste aversion learning in the pond snail Lymnaea stagnalis produce conditioned fear? Biological Bulletin. 2011 2;220(1):71-81.
Kita, Serina ; Hashiba, Ryuji ; Ueki, Saya ; Kimoto, Yukari ; Abe, Yoshito ; Gotoda, Yuta ; Suzuki, Ryoko ; Uraki, Eriko ; Nara, Naohisa ; Kanazawa, Akira ; Hatakeyama, Dai ; Kawai, Ryo ; Fujito, Yutaka ; Lukowiak, Ken ; Ito, Etsuro. / Does conditioned taste aversion learning in the pond snail Lymnaea stagnalis produce conditioned fear?. :: Biological Bulletin. 2011 ; 巻 220, 番号 1. pp. 71-81.
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AU - Kita, Serina

AU - Hashiba, Ryuji

AU - Ueki, Saya

AU - Kimoto, Yukari

AU - Abe, Yoshito

AU - Gotoda, Yuta

AU - Suzuki, Ryoko

AU - Uraki, Eriko

AU - Nara, Naohisa

AU - Kanazawa, Akira

AU - Hatakeyama, Dai

AU - Kawai, Ryo

AU - Fujito, Yutaka

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