Online research in philosophy

Inspired by Aristotle, Franz Brentano revived the concept of intentionality to characterize the domain of mental phenomena studied by descriptive psychology. Edmund Husserl, while discarding much of Brentano?s conceptual framework and presuppositions, located intentionality at the core of his science of pure consciousness (phenomenology). Martin Heidegger, Husserl?s assistant from 1919 to 1923, dropped all reference to intentionality and consciousness in Being and Time (1927), and so appeared to break sharply with his avowed mentors, Brentano and Husserl. Some recent commentators have sided with Heidegger and have endorsed his critique of Husserl and Brentano as still caught up in epistemological, representationalist approaches to intentionality. I argue that Heidegger is developing Husserl, focusing in particular on the ontological dimension of intentionality, not reversing or abandoning his account. Heidegger?s criticisms of representationalism merely repeat Husserl?s. Furthermore, I argue that Husserl?s account of cognitive intentionality, which recognizes the importance of the disinterested theoretical attitude for scientific knowledge, has been underestimated and misunderstood by Heidegger, who treats scientific cognition as a deficient form of practice. In short, Heidegger is more dependent on Husserl than he ever publicly acknowledged.

In philosophy the term intentionality refers to the feature possessed by mental states of beingabout things others than themselves. A serious question has been how to explain the intentionality of mental states. This paper starts with linguistic representations, and explores how an organism might use linguistic symbols to represent other things. Two research projects of Sue Savage-Rumbaugh, one explicity teaching twopan troglodytes to use lexigrams intentionally, and the other exploring the ability of several members ofpan paniscus to learn lexigram use and comprehension of English speech spontaneously when raised in an appropriate environment, are examined to explore the acquisition process. Although it is controversial whether intentionality of mental states or linguistic symbols is primary, it is argued that the intentionality of linguistic symbols is primary and that studying how organisms learn to use linguistic symbols provides an avenue to understanding how intentionality is acquired by cognitive systems.

The apparent incompatibility of mental states with physical explanations has long been a concern of philosophers of psychology. This incompatibility is thought to arise from the intentionality of mental states. But, Brentano notwithstanding, intentionality is an ordinary feature of higher order behavior patterns in the classical literature of ethology.

‘It is of the very nature of consciousness to be intentional’ said Jean-Paul Sartre, ‘and a consciousness that ceases to be a consciousness of something would ipso facto cease to exist’.1 Sartre here endorses the central doctrine of Husserl’s phenomenology, itself inspired by a famous idea of Brentano’s: that intentionality, the mind’s ‘direction upon its objects’, is what is distinctive of mental phenomena. Brentano’s originality does not lie in pointing out the existence of intentionality, or in inventing the terminology, which derives from scholastic discussions of concepts or intentiones.2 Rather, his originality consists in his claim that the concept of intentionality marks out the subject matter of psychology: the mental. His view was that intentionality ‘is characteristic exclusively of mental phenomena. No physical phenomenon manifests anything like it’.3 This is Brentano’s thesis that intentionality is the mark of the mental. Despite the centrality of the concept of intentionality in contemporary philosophy of mind, and despite the customary homage paid to Brentano as the one who revived the terminology and placed the concept at the centre of philosophy, Brentano’s thesis is widely rejected by contemporary philosophers of mind. What is more, its rejection is not something which is thought to require substantial philosophical argument. Rather, the falsity of the thesis is taken as a starting-point in many contemporary discussions of intentionality, something so obvious that it only needs to be stated to be recognised as true. Consider, for instance, these remarks from the opening pages of Searle’s Intentionality: Some, not all, mental states and events have Intentionality. Beliefs, fears, hopes and desires are Intentional; but there are forms of nervousness, elation and undirected anxiety that are not Intentional.... My beliefs and desires must always be about something. But my nervousness and undirected anxiety need not in that way be about anything.4 Searle takes this as obvious, so obvious that it is not in need of further argument or elucidation.

This paper proposes interpretations of the vexed notions of intensionality and intentionality and then investigates their resulting interrelations.The notion of intentionality comes from Brentano, in connection with his view that it can help us understand the mental. Setting aside Husserl’s basic definition of intentionality as not quite in line with Brentano’s explanatory purpose, this paper proposes that intentionality be defined in terms of inexistence and indeterminacy.It results that Brentano’s thesis (that all and only mental phenomena are intentional) will not be strictly true. However, intentional descriptions will always be intensional, though not all intensional descriptions will be intentional.

Intentionality is the mind’s capacity to direct itself on things. Mental states like thoughts, beliefs, desires, hopes (and others) exhibit intentionality in the sense that they are always directed on, or at, something: if you hope, believe or desire, you must hope, believe or desire something. Hope, belief, desire and any other mental state which is directed at something, are known as intentional states. Intentionality in this sense has only a peripheral connection to the ordinary ideas of intention and intending. An intention to do something is an intentional state, since one cannot intend without intending something; but intentions are only one of many kinds of intentional mental states. The terminology of intentionality derives from the scholastic philosophy of the Middle Ages, and was revived by Brentano in 1874. Brentano characterized intentionality in terms of the mind’s direction upon an object, and emphasized that the object need not exist. He also claimed that it is the intentionality of mental phenomena that distinguishes them from physical phenomena. These ideas of Brentano’s provide the background to twentieth-century discussions of intentionality, in both the phenomenological and analytic traditions. Among these discussions, we can distinguish two general projects. The first is to characterize the essential features of intentionality. For example, is intentionality a relation? If it is, what does it relate, if the object of an intentional state need not exist in order to be thought about? The second is to explain how intentionality can occur in the natural world. How can..

I question Brentano's thesis that all and only mental phenomena are intentional. The common gloss on intentionality in terms of directedness does not justify the claim that intentionality is sufficient for mentality. One response to this problem is to lay down further requirements for intentionality. For example, it may be said that we have intentionality only where we have such phenomena as failure of substitution or existential presupposition. I consider a variety of such requirements for intentionality. I argue they either fail to exclude all non-mental phenomena or are so demanding that they ground new, serious challenges to the claim that qualitative states of mind are intentional.

Intentionality, as Brentano originally introduced the term in modern philosophy, was meant to provide a distinctive characteristic definitively separating the mental from the physical.(1) Mental states have an intrinsic relationship to an object, to that which they are "about." Physical entities just are what they are, they cannot, by their very essence, refer to anything, they have no "outreach", as one might put it. Mental states have, as it were, an incomplete essence, they cannot exist at all unless they are completed by something other than themselves, their object. Brentano's position is opposed to all theories which represent the mental as only extrinsically related to the world, that is, to all theories in which mental states are themselves self-sufficient for their own existence and only secondarily relate to the world by means of something external to their nature, e.g., neurological causation, divine intervention, or pre-established harmony. In these later cases, any mental act whatsoever could be related to any object, or indeed to none, for the relation is external to the nature of the act, it is superimposed on it by outside forces. Brentano's point is that a mental act has, by its very essence, an Intentional object without which it would not be a mental act. It would therefore appear that since causality is an external relationship which could in principle relate any two things regardless of their nature, the Intentional relation between an act and its object cannot be a causal relation.

In this study I am going to present and discuss some of the central themes of Gustav Bergmann's theory of perception. I shall be concerned, however, only with "later Bergmann," that is, with the perceptual theory worked out in a series of essays in which Bergmann shifts from phenomenalism to a form of intentional realism. This label ("intentional realism") indicates the two dominant themes in Bergmann's later thought about perception: perceivings are analyzed as mental acts (thoughts) which are intentionally related to real and mind-independent objects and states of affairs. In a timely essay, " Intentionality" (1955) Bergmann presented an impressive defense of mental acts, and although the framework of that essay was still phenomenalistic, the structural analysis of mental acts and their intentionality presented there has not been significantly altered by Bergmann in later writings. In two subsequent essays, "Acts" (1960) and "Realistic Postscript" (1963) his realistic turn was worked out in detail in the context of giving a satisfactory account of ordinary perceptual experience. These three essays will comprise the core texts of the study that follows.