Sentience is the ability to experience feelings and sensations. It may not necessarily imply higher cognitive functions such as awareness, reasoning, or complex thought processes. Some theorists defin
Determining which animals can experience sensations is challenging, but scientists generally agree that vertebrates, as well as many invertebrate species, are likely sentient.
An octopus traveling with shells collected for protection. Despite evolving independently from humans for over 600 million years, octopuses show various signs of sentience. Octopuses, along with all other cephalopod molluscs and decapod crustaceans, were recognized as sentient by the United Kingdom in 2023.
Experiments suggest that bees can display an optimistic mood, engage in playful behavior, and strategically avoid threats or harmful situations unless the reward is significant.
The mind–body problem is a philosophical problem concerning the relationship between thought and consciousness in the human mind and body. It addresses the nature of consciousness, mental states, and
The neuronal correlates of consciousness constitute the smallest set of neural events and structures sufficient for a given conscious percept or explicit memory. This case involves synchronized action potentials in neocortical pyramidal neurons.
Midline structures in the brainstem and thalamus necessary to regulate the level of brain arousal. Small, bilateral lesions in many of these nuclei cause a global loss of consciousness.