There is an increasing amount of empirical work investigating the sense of agency, i.e. the registration that we are the initiators of our own actions. Many studies try to relate the sense of agency to an internal feed-forward mechanism, called the ‘‘comparator model’’. In this paper, we draw a sharp distinction between a non-conceptual level of feeling of agency and a conceptual level of judgement of agency. By analyzing recent empirical studies, we show that the comparator model is not able (...) to explain either. Rather, we argue for a two-step account: a multifactorial weighting process of different agency indicators accounts for the feeling of agency, which is, in a second step, further processed by conceptual modules to form an attribution judgement. This new framework is then applied to disruptions of agency in schizophrenia, for which the comparator model also fails. Two further extensions are discussed: We show that the comparator model can neither be extended to account for the sense of ownership (which also has to be differentiated into a feeling and a judgement of ownership) nor for the sense of agency for thoughts. Our framework, however, is able to provide a unified account for the sense of agency for both actions and thoughts. (shrink)

Six individuals with experience of psychosis were interviewed about their psychotic experiences. The material was analyzed using the empirical phenomenological psychological method. The results consist of a whole meaning structure, a gestalt, entailing the following characteristics: The feeling of estrangement in relationship to the world; the dissolution of time; the loss of intuitive social knowledge; the alienation of oneself, and finally; the loss of intentionality/loss of agency. In brief, the results show that an altered perception of the self and the (...) world was an essential part of the psychotic experience where subjects described themselves as changed; something was sensed as being wrong as psychosis is perceptible but hard to communicate. The normal life-world experience was altered and reality seemed strange. Time perception seemed to be changed as temporality appeared dissolved and the experience of time was focused on the current moment excluding the future. The subjects described loss of intentionality, they were no longer agents in their actions but partly steered by others and they could feel as if their experiences were not theirs. The patients also describe problems regarding their ability to socialize and communicate with others. They seem to lose their intuitive social capacity and were prone to suspiciousness. (shrink)

Imbalanced plasticity of neural networks in the brain is proposed to underlie deficits in the integration of efferent and afferent processes in schizophrenia. These deficits affect the priming of the behavior implementing systems by prior knowledge, and thus impair both controlled regulation and automatic activation of mental and motor processes. The sense of self as a distinct entity can consequently be undermined. In predominantly reality-distorting patients, hypo-plasticity of neural connectivity may cause the emergence of highly focused but inflexible patterns of (...) activation in their representation and response systems. This may lead to dominance of prepotent patterns of activity in these systems and a relative inability of higher control systems to bias lower level activity towards congruence with the ongoing cognitive and motor context. By contrast, predominantly disorganized patients are characterized by hyper-plastic connectivity. This leads to a weakening of prepotent response tendencies but also, as in reality-distorting patients, to less effective top-down contextual constraining. (shrink)

The present paper aims to shed light on some post-oedipal moments of the Freudian-Lacanian psychoanalysis. Going beyond the stereotypical opposition between the oedipal psychoanalysis and the anti-oedipal schizoanalysis, it endeavors to reinvestigate the semiotic nature of theknotenpunktand thesinthomeby applying some Deleuzian and Bakhtinian concepts. Thus, theknotenpunktis described as a grotesque knot bringing together some heterogeneous elements. The involved disparate components establish a rhizomatic multiplicity irreducible to a common determiner. As far as thesinthomeis concerned, it is also illustrated as a grotesque (...) knot quilting the disseminated heterogeneous orders. In contrast to the dominant conception of the symptom with a complex mode of signifying (that is mainly bound to the oedipal topography), theknotenpunktand thesinthomehold a kind of hyper-formative mode of signifying. As a result, the latter may be regarded as pure formators irreducible to a meaning or a certain interpretation. Finally, the paper sets out to analyze and evaluate the relationship between thesinthomeand the foreclosure from a semiotic perspective. Accordingly, thesinthomeis explained as a reply to foreclosure which is specifically a perceptive-imperative (retroactive) contemplation (in the light of law according to the Peircean phaneroscopy) on the rhizomatic multiplicity of psychosis (the case of schizophrenia). (shrink)

Epidemiological studies have shown that environmental green space contributes to the reduction of psychosis incidence in the population. Clarifying the psychological and neuro-functional mechanisms underlying the risk-decreasing effects of green surroundings could help optimize preventive environmental interventions. This perspective article specifically aims to open a new window on the link between environmental green space and psychosis by considering its core psychopathological features. Psychotic disorders, such as schizophrenia, are essentially characterized by self-disturbances. The psychological structure of the self has been described (...) as a multidimensional phenomenon that emerges from the reciprocal interaction with the environment through intrinsic and extrinsic self-processes. The intrinsic self refers to the experience of mental activity and environmental information as inherently related to one’s own person, which involves self-referential processing, self-reflection, memory, interoception, and emotional evaluation. The extrinsic self refers to sensorimotor interactions with the environment and the sense of agency, that is, the experience of being the source of one’s own actions and the multisensory consequences thereof. In psychosis, anomalous self-processing has been related to a functional fragmentation of intrinsic and extrinsic self-processes and related brain networks. Moreover, evidence from cognitive neuroscience suggests that green space could have beneficial effects on self-related processing. Based on the literature, it could be hypothesized that self-processing is involved in mediating the beneficial effects of green space for psychosis. Considering the multidimensionality of the self, it is proposed that urban green space design aimed at improving mental health ideally impacts the complexity of self-facets and thus restores the individual’s self. (shrink)

The phenomenon of consciousness has received through the centuries a profusion of interpretations, engaging researchers across many disciplines. Nevertheless, consensus still floats at large. The aim of the present work is therefore twofold. Through the review of a selected number of existing proposals, it will first be considered the extents of their reciprocal compatibility, tentatively shaping an integrated, theoretical profile of consciousness. A new theory, the Endogenous Feedback Network will consequently be introduced which, besides being able to accommodate the main (...) tenets of the reviewed theories, appears able to compensate for the explanatory gaps they leave behind. The EFN proposes consciousness as the phenomenon emerging from a distinct neural network broadcasting the changes associated to mental activations across the brain. It additionally argues for the need to include a 5th element to Ned Block’s taxonomy that is, non-cognitive consciousness. (shrink)