Spatial attention and eye-movements are tightly coupled, but the precise nature of this coupling is controversial. The influential but controversial Premotor theory of attention makes four specific predictions about the relationship between motor preparation and spatial attention. Firstly, spatial attention and motor preparation use the same neural substrates. Secondly, spatial attention is functionally equivalent to planning goal directed actions such as eye-movements (i.e. planning an action is both necessary and sufficient for a shift of spatial attention). Thirdly, planning a goal (...) directed action with any effector system is sufficient to trigger a shift of spatial attention. Fourthly, the eye-movement system has a privileged role in orienting visual spatial attention. This article reviews empirical studies that have tested these predictions. Contrary to predictions one and two there is evidence of anatomical and functional dissociations between endogenous spatial attention and motor preparation. However, there is compelling evidence that exogenous attention is reliant on activation of the oculomotor system. With respect to the third prediction, there is correlational evidence that spatial attention is directed to the endpoint of goal-directed actions but no direct evidence that this attention shift is dependent on motor preparation. The few studies to have directly tested the fourth prediction have produced conflicting results, so the extent to which the oculomotor system has a privileged role in spatial attention remains unclear. Overall, the evidence is not consistent with the view that spatial attention is functionally equivalent to motor preparation so the Premotor theory should be rejected, although a limited version of the Premotor theory in which only exogenous attention is dependent on motor preparation may still be tenable. A plausible alternative account is that activity in the motor system contributes to biased competition between different sensory representations with the winner of the competition becoming the attended item. (shrink)

Au cours d’une phase exploratoire, les rongeurs esquissent une forme qui oriente leur attention au contexte et assure un codage sensori-moteur des relations entre divers lieux caractéristiques selon un modèle qui s’apparente à la carte cognitive de Tolman. Selon nous, la perspective neuro-éthologique gagne en portée explicative par son articulation à la conception ruyérienne du comportement animal en soulignant le rôle de l’intégration de conduites guidées par des réponses instinctives dans l’élaboration de la cognition spatiale. Nous pouvons ainsi confronter les (...) descriptions de la neuro-éthologie à la conception ruyérienne de l’instinct « toujours thématique ». (shrink)

Over the last decade the modeling and the storage of biological data has been a topic of wide interest for scientists dealing with biological and biomedical research. Currently most data is still stored in text files which leads to data redundancies and file chaos.In this paper we show how to use relational modeling techniques and relational database technology for modeling and storing biological sequence data, i.e. for data maintained in collections like EMBL or SWISS-PROT to better serve the needs for (...) these application domains. (shrink)

Bd. 1. Adolph Goldschmidt, Ernst Meumann, Wilhelm Waetzoldt und Arnold Schering -- Bd. 2. Paul Frankl, Emilt Utitz, Gustav Johann von Allesch und Wilhelm Worringer.

“In true love one must see oneself in the absolutely other. This must mean I would die in me to live in you. At the foundation of what I have named the self-consciousness of the absolute nothing, in which I am myself through the fact that in my foundations I see the absolutely other or, better, a Thou: here must lie the meaning of love. In my view the agape of Christianity has this meaning. Agape is not a yearning, but (...) rather much more a sacrifice, the love of God and not the love of a human. This love comes down from God to humans rather than rising from humans up into God.... Just as Augustine puts it: I am myself through the love of God, i.e., through the love of God I am truly I.”2 The late Jesuit .. (shrink)

Bd. 1. Einige Entwicklungstendenzen von der Antike bis zum Ausgang des Mittelalters.

Over the last decade the modeling and the storage of biological data has been a topic of wide interest for scientists dealing with biological and biomedical research. Currently most data is still stored in text files which leads to data redundancies and file chaos.In this paper we show how to use relational modeling techniques and relational database technology for modeling and storing biological sequence data, i.e. for data maintained in collections like EMBL or SWISS-PROT to better serve the needs for (...) these application domains.For this reason we propose a two step approach. First, we model the structure (and therefore the meaning of the) data using an Entity-Relationship approach. The ER model leads to a clean design of a relational database schema for storing and retrieving the DNA and protein data extracted from various sources. Our approach provides the clean basis for building complex biological applications that are more amenable to changes and software ports than their file-base counterparts. (shrink)