Merker’s definition of consciousness excludes self-reflective thought, making his proposal for decorticate consciousness not particularly groundbreaking. He suggests that brainstem sites are neglected in current theories of consciousness. This is so because broader definitions of consciousness are used. Split-brain data show that the cortex is important for full-blown consciousness; also, behaviors exhibited by hydranencephaly patients and decorticated rats do not seem to require reflective consciousness.

This exposition focuses on purposeful behavioursaseffortstoward self-actualization. I introducehabit as a set of value-based behaviours that is different than the typical habit of physical movements. Each of those praxis is controlled by cognition drivenby values –both personal and societal, and their following habitsare the result of complex learning. I will then elaborate on three important topics: (1) awareness and efficacy with respect tohabit, (2) collective habit, and (3) implications of existential habit on the individual’s as well as the society’s wellbeing.

Aristotle famously claimed that we perceive that we see or hear, and that this metaperception necessarily accompanies all conscious sensory experiences. In this essay I compare Aristotle’s account of metaperception with three main models of self-awareness to be found in the contemporary literature. The first model countenances introspection or inner sense as higher-order perception. The second model rejects introspection altogether, and maintains that judgments that we see or hear can be directly extracted from the first-order experience, using a procedure sometimes (...) called “an ascent routine.” The third model insists that the first-order experience has a twofold intentional structure: it is directed both at the perceived external object and at itself, i.e., reflexively. Although Aristotle’s own account is certainly closer to the third model (as Brentano rightly observed), the latter does not exhaust Aristotle’s insights on metaperception. One function of the common sense in Aristotle’s theory of perception is apparently to monitor the activity of our sensory modalities, and to make us aware that we see or hear independently of the sensory contents of our experience. I shall suggest that the monitoring function of perception is best understood in relation with contemporary cognitive science research on metacognition. Common sense is or involves a metaperceptual practical ability distinct from both object level sensory perception and metarepresentational knowledge about our senses. (shrink)

Four different accounts of the relationship between third-person mindreading and first-person metacognition are compared and evaluated. While three of them endorse the existence of introspection for propositional attitudes, the fourth (defended here) claims that our knowledge of our own attitudes results from turning our mindreading capacities upon ourselves. Section 1 of this target article introduces the four accounts. Section 2 develops the “mindreading is prior” model in more detail, showing how it predicts introspection for perceptual and quasi-perceptual (e.g., imagistic) mental (...) events while claiming that metacognitive access to our own attitudes always results from swift unconscious self-interpretation. This section also considers the model's relationship to the expression of attitudes in speech. Section 3 argues that the commonsense belief in the existence of introspection should be given no weight. Section 4 argues briefly that data from childhood development are of no help in resolving this debate. Section 5 considers the evolutionary claims to which the different accounts are committed, and argues that the three introspective views make predictions that are not borne out by the data. Section 6 examines the extensive evidence that people often confabulate when self-attributing attitudes. Section 7 considers “two systems” accounts of human thinking and reasoning, arguing that although there are introspectableeventswithin System 2, there are no introspectableattitudes. Section 8 examines alleged evidence of “unsymbolized thinking”. Section 9 considers the claim that schizophrenia exhibits a dissociation between mindreading and metacognition. Finally, section 10 evaluates the claim that autism presents a dissociation in the opposite direction, of metacognition without mindreading. (shrink)

Words have meaning. Sentences also have meaning, but their meaning is different in kind from any collection of the meanings of the words they contain. I discuss two puzzles related to this difference. The first is how the meanings of the parts of a sentence combine to give rise to a unified sentential meaning, as opposed to a mere collection of disparate meanings (UP1). The second is why the formal ontology of linguistic meaning changes when grammatical structure is built up (...) (UP2). For example, the meaning of a sentence is a proposition evaluable for truth and falsity. In contrast, a collection of the meanings of its parts does not constitute a proposition and is not evaluable for truth. These two puzzles are closely related, since change in formal ontology is the clearest sign of the unity of meaning. The most popular strategy for answering them is taking the meanings of the parts as abstractions from primitive sentence meanings. However, I argue that, given plausible psychological constraints, sentence meanings cannot be taken as explanatory primitives. Drawing on recent work in Generative Grammar and its philosophy, I suggest that the key to both unity questions is to distinguish strictly between lexical and grammatical meaning. The latter is irreducible and determines how lexical content is used in referential acts. I argue that these referential properties determine a formal ontology, which explains why and how formal ontology changes when grammatical structure is built up (UP2). As for UP1, I suggest that, strictly speaking, lexical meanings never combine. Instead, whenever grammar specifies a formal ontology for the lexical meanings entering a grammatical derivation, further lexical (or phrasal) meanings can only specify aspects of this recursive grammatical process. In this way, contemporary grammatical theory can be used to address old philosophical problems. (shrink)