In recent years there has been increasing evidence that an area in the brain called the cortical midline structures is implicated in what has been termed self-related processing. This article will discuss recent evidence for the relation between CMS and self-consciousness in light of several important philosophical distinctions. First, we should distinguish between being a self and being aware of being a self. While the former consists in having a first-person perspective on the world, the latter requires the ability to (...) explicitly represent one's own perspective as such. Further, we should distinguish between being aware of oneself "as subject" and being aware of oneself "as object." The focus of existing studies investigating the relation between CMS and self has been predominantly on the ability to think about oneself, while the more basic aspects involved in being a self have been neglected. However, it is important to widen the scope of the cognitive neuroscience to include the latter, not least because this might have important implications for a better understanding of disorders of the self, such as those involved in schizophrenia. In order to do so, cognitive neuroscience should work together with philosophy, including phenomenology. Second, we need to distinguish between personal and subpersonal level explanations. It will be argued that although it is important to respect this distinction, in principle, some subpersonal facts can enter into constitutive conditions of personal-level phenomena. However, in order for this to be possible, one needs both careful conceptual analysis and knowledge about relevant cognitive mechanisms. (shrink)

Ansgar Beckermann's account of self-consciousness can be seen as an attempt to locate the origin of self-conscious states in social cognition. It is assumed that in order to acquire self-consciousness, a cognitive system has to 'see itself through the eyes of the others'. This account, however, is doomed to failure, for principled reasons. It cannot provide a satisfactory explanation of the special, identification-free reference of first-person thoughts and, thus, fails to explain crucial features of attitudes. In addition, Beckermann's account exhibits (...) various other shortcomings. German Ansgar Beckermanns Theorie zur Erklärung von Selbstbewusstsein kann als exemplarischer Versuch verstanden werden, die Wurzeln selbstbewusster Zustände in sozialer Kognition zu suchen. Dabei wird angenommen, dass eine notwendige Bedingung zur Entwicklung von Selbstbewusstsein darin besteht, dass sich kognitive Wesen in sozialer Interaktion ,mit den Augen eines anderen sehen' lernen. Dieser Ansatz scheitert aber aus prinzipiellen Gründen, da er die besondere, identifikationsfreie Referenz von Ich-Gedanken nicht erklären kann und damit eine Erklärung wesentlicher Züge von de-se -Zuständen schuldig bleibt. Zudem ist Beckermanns Theorie im Besonderen durch einige weitere, grundlegende Unzulänglichkeiten gekennzeichnet. (shrink)

The paper investigates possible readings of the later Heisenberg's remarks on the nature of quantum states. It discusses, in particular, whether Heisenberg should be seen as a proponent of the epistemic conception of states – the view that quantum states are not descriptions of quantum systems but rather reflect the state assigning observers' epistemic relations to these systems. On the one hand, it seems plausible that Heisenberg subscribes to that view, given how he defends the notorious "collapse of the wave (...) function" by relating it to a sudden change in the epistemic situation of the observer registering a measured result. On the other hand, his remarks on quantum probabilities as "potentia" or "objective tendencies" are difficult to reconcile with such a reading. The accounts that are attributed to Heisenberg by the different possible readings considered are subjected to closer scrutiny; at the same time, their respective virtues and problems are discussed. _German_ Diese Arbeit untersucht mögliche Lesarten von Heisenbergs späten Bemerkungen über die Natur von Quantenzuständen. Insbesondere wird die Frage diskutiert, ob Heisenberg als Vertreter der epistemischen Auffassung von Quantenzuständen gelten kann – der Idee, dass Quantenzustände nicht Beschreibungen der objektiven Eigenschaften von Quantensystemen sind sondern die epistemischen Beziehungen von Beobachtern zu diesen Systemen widerspiegeln. Einerseits erscheint es plausibel, dass Heisenberg dieser Sichtweise zustimmt, wenn man sich ansieht, wie er den berüchtigten,,Kollaps der Wellenfunktion" verteidigt, indem er ihn mit einer plötzlichen Änderung in der Kenntnis des ein Messergebnis registrierenden Beobachters in Zusammenhang bringt. Andererseits sind seine Bemerkungen über quantenmechanische Wahrscheinlichkeiten als,,Potentia" oder,,objektive Tendenzen" mit einer solchen Lesart nur schwer in Einklang zu bringen. Die Positionen, die Heisenberg den verschiedenen möglichen Lesarten zufolge vertritt, werden eingehenden Untersuchungen unterzogen; gleichzeitig werden ihre jeweiligen Vorzüge und Probleme diskutiert. (shrink)