Abstract

Concept definitions applicable to human and non-human animals should be usable for both. Awareness is a state during which concepts of environment, self, and self in relation to environment result from complex brain analysis of sensory stimuli or constructs based on memory. There are several proposed categories of awareness. The widespread usage of the term conscious is 'not unconscious' so a conscious individual is an individual that has the capability to perceive and respond to sensory stimuli. It is confusing and scientifically undesirable if conscious is also used to mean aware. Hence it is proposed that conscious should be used only as above. Fully functioning and adequately developed humans and members of many other animal species are sentient. Sentience means having the capacity, the level of awareness and cognitive ability, necessary to have feelings. The welfare of an individual is its state as regards its attempts to cope with its environment. This includes feelings, which are important coping mechanisms, and health. Since feelings involve awareness, there is overlap between welfare assessment and awareness assessment. Methods for assessing awareness, consciousness, sentience, and welfare and links to morality are briefly discussed.