This article presents a challenge concerning the causal efficacy of causal processes, distinct from the much-discussed causal-exclusion problem. The new challenge is to consciousness theories that require conscious processes to involve causation patterned in some specific way. This broad, diverse class includes prominent theories such as the Integrated Information Theory, Global Workspace theories and a type of Higher-Order Thought theory. The challenge arises because the causal pattern is not itself required for the effects the processes have on the organism’s other (...) aspects. Hence, the processes’ property of being conscious is dispensable in accounting for those effects. The theories are challenged to show how this does not constitute an operational problem for individual organisms or a problem as regards explaining the evolution of consciousness. The paper explains how the challenge can be met by the radical move of introducing meta-causation: causation that acts on causation instances themselves. This allows the instances of causation in conscious processes, as entities in their own right, to be causes of effects elsewhere. The paper also summarizes the author’s previously published motivation for proposing meta-causation, as the basis of consciousness itself. The present paper further supports this view. (shrink)

The definition of death as “irreversible coma” was introduced in 1968 by the Harvard University Medical School. It was developed largely in diagnostic terms as the “irreversible cessation of all functions of the entire brain, including the brainstem.” In its review of brain death in 1981, The President’s Commission for the Study of Ethical Problems in Medicine argued that brain death is consonant with circulatory death because the loss of certain brain functions results in the “loss of integrative unity of (...) the organism,” leading to cardiac arrest. This picture of a unified conception of death was challenged by subsequent clinical evidence suggesting that, with proper treatment, circulatory death is not the inevitable result of brain death. Here, it is argued that, if death, in the morally relevant sense, is defined as irreversible loss of consciousness, a unitary conception of death can be maintained. However, significant theoretical and methodological obstacles remain in diagnosing irreversible loss of consciousness. (shrink)