Behavioural tests can demonstrate both volition and a theory of mind to different degrees across apes, monkeys, and other animals.Ĥ Intelligence Often defined very broadly, the OED says intelligence is “the ability to acquire and apply knowledge and skills” while M-W defines it as “ the ability to learn or understand or to deal with new or trying situations” and “the ability to apply knowledge to manipulate one’s environment or to think abstractly as measured by objective criteria”. In the absence of direct communication, psychologists typically use the mirror test to establish self-awareness, and have found it across a wide range of species to a degree which may even be quantifiable. The problem is that consciousness is at least partially subjective, so we would have to accept that any being which communicates an understanding of the concept and claims ownership of it is, therefore, conscious. Philosophers continue to argue that there are different types and forms of consciousness, which might allow us to form a hierarchy of consciousness if these states can be measured and tested across species. While some of this is a broader version of sentience, the key aspects that make consciousness different from sentience seem to be self-awareness and the contrast with unconscious activity. Merriam-Webster gives a range of definitions, most usefully “the quality or state of being aware especially of something within oneself”, “the state of being characterized by sensation, emotion, volition, and thought” and “the upper level of mental life of which the person is aware as contrasted with unconscious processes”. The OED calls consciousness “the state of being aware of and responsive to one’s surroundings” and “the fact of awareness by the mind of itself and the world”. Not surprisingly, wisdom is highly regarded by religions, either as a facet of godhood of which humans can only achieve a limited portion, or as the path to ultimate enlightenment and godhood.ģ Consciousness One of the great mysteries of philosophy isn’t going to be settled in a 5x5: there is no widely-accepted operational definition of consciousness, or how and why it exists, but it is something that everyone agrees people have, and it is probably present in some animals. It’s a measure of efficiency which makes humans almost identical to primates and little different to insects, but it’s of little use here because it says nothing about the quality of sentient experience.Ģ Sapience The OED and M-W dictionaries both describe sapience interchangeably with wisdom and sagacity: “ Having or showing experience, knowledge, and good judgement”, although Collins is more expansive: “the ability or result of an ability to think and act utilizing knowledge, experience, understanding, common sense, and insight”.Īrguably, the use of information integrated from different types of experience is the distinctively human feature which justifies the title of homo sapiens, encompassing other aspects of intelligence such as the culture and communication required to build a body of knowledge, understanding those around us, and understanding how to manipulate the environment. The Sentience Quotient was coined by the molecular engineering researcher Robert A Freitas Jr in 1977 and defines sentience as the relationship between the information processing rate (bit/s) of each individual processing unit (such as a neuron), the weight and size of a single unit and the total number of processing units (expressed as mass). There is a proposed comparative measure of sentience. In the philosophy of animal rights, sentience is a reference to subjective experiences, which crucially includes the capacity to experience pain and pleasure, and animal sentience is recognised in the EU’s 1997 Treaty of Amsterdam. sapient, conscious, intelligent or emotional? It is Monkey Monday, after all ( Anthony Anastas)ġ Sentience The Oxford English Dictionary offers a surprisingly narrow definition of sentience as “the ability to perceive or feel things”, while Merriam-Webster is slightly more helpful with “feeling or sensation as distinguished from perception and thought”.
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