Basic elements of cognition have been identified in the behaviour displayed by animal collectives, ranging from honeybee swarms to human societies. For example, an insect swarm is often considered a "super-organism" that appears to exhibit cognitive behaviour as a result of the interactions among the individual insects and between the insects and the environment. Progress in disciplines such as neurosciences, cognitive psychology, social ethology and swarm intelligence has allowed researchers to recognise and model the distributed basis of cognition and to draw parallels between the behaviour of social insects and brain dynamics. In this paper, we discuss the theoretical premises and the biological basis of Swarm Cognition, a novel approach to the study of cognition as a distributed self-organising phenomenon, and we point to novel fascinating directions for future work.
Swarm Cognition is a novel multidisciplinary approach that encompasses research in neurosciences, cognitive psychology, social ethology and swarm intelligence, with the aim of studying cognition as an emergent collective phenomenon in which perception, attention, decision making and other cognitive processes are brought forth by a multitude of elementary units tightly interacting among each other. Within the Swarm Cognition framework, a broad view of cognition is adopted, so that its definition also includes the behaviour displayed in a distributed system like an ant colony. Indeed, an ant colony can display complex cognitive functions as a result of the interactions among the system components. The parallel with brain activities is straightforward. An ant is part of a colony, much as a neuron is part of a brain. An ant cannot do much in isolation, but a colony is a highly resilient adaptive system. Similarly, a neuron is individually able to only make limited interactions with other neurons, but the brain is capable of highly complex cognitive processes. In other words, both ants and neurons behave/act in perfect harmony with other conspecifics/cells to accomplish tasks that go beyond the capability of a single individual. Out of metaphor, Swarm Cognition aims at studying cognitive processes as the emergent result of the collective dynamics in a distributed system, be the system composed of autonomous agents like ants or basic control units like neurons.
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