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The Underlying Neuronal Circuits of Fear Learning and the Snake Detection Theory (SDT)

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The Fear of Snakes

Part of the book series: The Science of the Mind ((The Science of the Mind))

Abstract

In previous chapters, I described the behavioral aspects of fear learning in humans and animals. Öhman et al. hypothesized (Öhman and Mineka 2001, 2003) that the neural mechanisms that process sources of fear (e.g., snakes and spiders), commonly shared among mammals, including humans, are independently maintained in the brain. The snake detection theory (SDT) proposes that the primate brain expanded to be able to detect snakes efficiently during the course of evolution (Isbell 2006, 2009); furthermore, it proposes the existence of an independent fear module in the brain and identifies its neural mechanism in more detail. This chapter will provide a review of the SDT. Before embarking on this review, we will first describe the neural mechanisms underlying general fear learning in relation to typical examples of Pavlovian conditioning through exposure to light and sound as conditioned stimuli (CS).

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Kawai, N. (2019). The Underlying Neuronal Circuits of Fear Learning and the Snake Detection Theory (SDT). In: The Fear of Snakes. The Science of the Mind. Springer, Singapore. https://doi.org/10.1007/978-981-13-7530-9_3

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