アプリシアにおける防御的離脱レフレクスの長期的習慣化

T J Carew, H M Pinsker, E R Kandel

Science (New York, N.Y.)

|January 28, 1972

まとめ

Aplysia防御性離脱レフレクスの長期的習慣化が研究されました. スペーストレーニングは,3週間以上続く習慣化期間を高め,長期記憶の細胞メカニズムを研究する可能性を示唆しています.

科学分野:

神経科学は神経科学である.
行動生物学行動生物学
マリン・バイオロジーマリン・バイオロジー

背景:

アプリシアは,サイフォンに触れたときに防御的離脱レフレクスを示します.
この反射は,シフォン,,マントルシェルフの収縮を伴う.
習慣化,つまり繰り返し刺激に対する反応の低下は,学習の基本的な形態である.

研究の目的:

アプリシア離脱レフレクスの長期的習慣化を調査する.
習慣化における,間隔トレーニングと集団トレーニングの効果を比較する.
長期的な行動修正の細胞基盤の研究の可能性を探求する.

主な方法:

無制限のAplysia.でシフォン離脱の習慣化を研究しました.
拘束されたAplysia.での撤退の習慣化が研究されました.
試行間隔が異なる単一の,または複数の毎日のトレーニングセッションを雇いました.

主要な成果:

シフォン離脱は,1回のトレーニングセッションで習慣化される.
毎日5回のトレーニングセッションで,3週間以上続く習慣化につながりました.
スペーストレーニングは,集団トレーニングよりも長期にわたる習慣化をもたらしました.
の退去は,習慣化が長期にわたって維持されることも示した.

結論:

アプリシアは,防御的離脱レフレクスの強力な長期的習慣化を示しています.
訓練スケジュールは習慣化期間に大きな影響を与えます.
の離脱のよく理解されている神経回路は,長期記憶の細胞メカニズムを調査するためのモデルを提供します.

さらに関連する動画

06:12

Long-term Sensory Conflict in Freely Behaving Mice

Published on: February 20, 2019

09:00

Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm

Published on: October 3, 2020

関連する概念動画

01:05

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.

01:03

Long-term Depression

01:17

Classification of Illness

The meaning of illness is individualized to each person who experiences an alteration in health. In contrast, disease is a medical term indicating a pathological change in the structure and function of the body or mind. It is a condition that has specific symptoms and boundaries.
An illness is a response to a disease in which the person's level of functioning is changed compared with a previous level. The general classification of illness includes acute and chronic.
Acute illness is severe and...

01:20

Desensitization and Tachyphylaxis

Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.
Several...

01:14

Avoidance Learning and Learned Helplessness

Avoidance learning and learned helplessness are critical concepts in understanding behavioral responses to negative stimuli.
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...

01:05

Instinctive Drift

Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...

関連する実験動画