DO FISH FEEL PAIN - DO FISH FEEL PAIN? This is not an easy...

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DO FISH FEEL PAIN? This is not an easy question to answer. Reasonable arguments have been made both to support and refute the claim that fish are capable of sensing and experiencing pain. Summaries of two such arguments follow. The Case Against the Experience of Pain in the Fish James Rose of the University of Wyoming has put forth a strong argument for the inability of fish to experience pain that relies on analogy between human and fish neuroanatomy. Rose emphasizes the distinction between reaction to injury and psychological experience of pain and emphasizes that the existence of the former does not evince the existence of the latter. Indeed, human experiments have proven that pain is experienced in the brain and that sensation of and reaction to noxious, or potentially harmful, stimuli can occur without the experience of pain. The concept of nociception makes this possible. Nociception: The term nociception refers to the detection of noxious stimuli by the nervous system. The peripheral nervous receptors we call nociceptors sense stimuli and report to the central nervous system where motor responses are initiated and the sensation of pain is perceived. Some fish species certainly do have nociceptive neurones analogous to those found in the human (see Neuro-physiology of Pain in Fish). However, this means only that these animals are capable of sensing noxious stimuli; it provides no evidence for the psychological experience of pain. Pain Related Chemicals: Teleost nervous systems also produce opiate-related compounds and proteins similar to the GABA/benzodiazepen receptors that play a role in the sensation of human pain. However, these compounds are not exclusively related to pain in humans and may play other roles in the physiology of fish. For greater evidence of the psychological experience of pain it seems appropriate to examine the brain. The Brain:
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This note was uploaded on 01/06/2012 for the course PSYCH 2301 taught by Professor Michaelrose during the Fall '12 term at Collins.

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DO FISH FEEL PAIN - DO FISH FEEL PAIN? This is not an easy...

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