ABSTRACT The concepts of radicalisation and de-radicalisation are primarily defined by the assumption they make that there is a causal relationship between ideas and action. However, the causal role of ideas in informing behaviour has been strongly contested and has thus far eluded and undermined radicalisation and de-radicalisation conceptually and practically. The following article provides a theoretical basis for identifying the causal relationship between ideas and action through Margaret Archer’s critical realist ontology. Drawing on fieldwork conducted in Northern Ireland, the article identifies processes of ideational causal reproduction and morphogenesis in the Provisional Irish Republican Army’s thinking on armed struggle during its transition away from armed violence. It argues that the adoption of the Armalite and Ballot Box strategy in the 1980s introduced a contradiction in the movement’s ideology and that the movement was pressured to address this contradiction through three corrective cycles throughout the peace-process, subsequently softening its position on armed struggle.

中文翻译：

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意识形态和文化体系在激进化和反激进中的因果作用

摘要激进主义和反激进主义的概念主要由以下假设定义：它们使思想与行动之间存在因果关系。然而，观念在告知行为方面的因果作用一直受到激烈争论，因此，从概念上和实践上，至今仍未引起和破坏激进化和反激进主义。下一篇文章为通过玛格丽特·阿彻的批判现实主义本体论确定思想与行动之间的因果关系提供了理论基础。本文利用在北爱尔兰进行的实地考察，确定了临时爱尔兰共和军从武装暴力过渡期间的武装斗争思想中的因果再现和形态发生过程。