The role of visual attention in action priming

It has been demonstrated that the task-irrelevant left-right orientation of an object is capable of facilitating left-right-hand responses when the object is orientated towards the responding hand. We investigated the role of attention in this orientation effect. Experiment 1 showed that object orientation facilitates responses of the hand that is compatible with the object's orientation, despite the entire object being irrelevant. However, when a task-relevant fixation point was displayed over the prime object in Experiment 2, the effect was not observed. Together Experiments 1 and 2 suggest that the orientation information of viewed objects primes the action selection processes even when the object is irrelevant, but only when attention is not allocated to a competing stimulus during the prime presentation. Experiment 3 suggested that the elimination of the effect in Experiment 2 could not be attributed to the elimination of an attentional shift to the graspable part of the prime. Finally, Experiment 4 showed that object orientation can evoke an abstract response code, influencing the selection of finger responses.     

IMAGO DEI AND HUMAN RATIONALITY

There is a pervasive trend in Western theology to identify imago Dei with human intellectual and cognitive capacities. However, several contemporary theologians have criticized this view because, according to the critics, it leads to a truncated view of humanity. In this article, I shall concentrate on the question of rationality, first, through theologies of Thomas Aquinas and contemporary Lutheran Robert Jenson, and second, in some branches of recent cognitive psychology. I will argue that there is a significant overlap between contemporary scientific interpretations of rationality and both a traditional Thomistic view and a contemporary ecumenical interpretation of imago Dei. Consequently, it is possible to give an account of imago Dei which takes structural features as central and which is in accord with contemporary science, without falling prey to the dangers that the critics of structuralism point out.     

Mapping the identity of a viewed hand in the motor system: evidence from stimulus-response compatibility

Brain-imaging research has shown that a viewed acting hand is mapped to the observer's hand representation that corresponds with the identity of the hand. In contrast, behavioral research has suggested that rather than representing a seen hand in relation to one's own manual system, it is represented in relation to the midline of an imaginary body. This view was drawn from the finding that indicated that the posture of the viewed hand determines how the hand facilitates responses. The present study explored how an identity of a viewed static hand facilitates responses by varying the onset time and the posture of the hand. The results were in line with the view that an observed hand can activate the observer's hand representation that corresponds with the identity of the hand. However, the posture of the hand did not influence these mapping processes. What mattered was the perspective (i.e., egocentric vs. allocentric) from which the hand was viewed.