Heidegger's animals

This paper provides a reading of Heidegger's work on the question of animality. Like the majority of discussions of this topic it utilises the 1929–30 course The Fundamental Concepts of Metaphysics, but the analysis seeks to go beyond this course alone in order to look at the figure or figures of animals in Heidegger's work more generally. This broader analysis shows that animals are always figured as lacking: as poor in world, without history, without hands, without dwelling, without space. The article shows how all these claims are grounded upon the most fundamental distinction: that the human is the zoon logon ekhon. In Heidegger's analysis this is not the animal rationale of metaphysical thought, but the living being that has and is held by logos, speech. Looking at how the logos became ratio, the paper notes how the way that animals do not calculate is the sole positive accreditation of animals in Heidegger's work.     

Similar effects of attention directed to acoustic and tactile stimuli on prepulse inhibition of acoustic startle

Prepulse inhibition (PPI) is assumed to index automatic and controlled processing. In three experiments (n= 32, 22, and 30) participants were asked to judge the duration of a prepulse in comparison with a stimulus presented 4000 ms before the prepulse. A distracter was presented simultaneously with the prepulse to increase the cognitive demands of the task. PPI was assessed at stimulus onset asynchronies (SOAs) of 30-150 ms, and 420 ms. The prepulse was either a tone (60 dB) or a tactile stimulus (21 kPa), and startle was elicited by 95 dB white noise. Directing attention to the prepulse increased PPI at SOAs of 60 ms and longer in all experiments, but the sensory modality to which attention was directed played only a minor role. We conclude that directing attention to both acoustic and tactile prepulses increased PPI.     

The Place Of Geometry: Heidegger's Mathematical Excursus On Aristotle

'The Place of Geometry' discusses the excursus on mathematics from Heidegger's 1924–25 lecture course on Platonic dialogues, which has been published as Volume 19 of the Gesamtausgabe as Plato's Sophist , as a starting point for an examination of geometry in Euclid, Aristotle and Descartes. One of the crucial points Heidegger makes is that in Aristotle there is a fundamental difference between arithmetic and geometry, because the mode of their connection is different. The units of geometry are positioned, the units of arithmetic unpositioned. Following Heidegger's claim that the Greeks had no word for space, and David Lachterman's assertion that there is no term corresponding to or translatable as 'space' in Euclid's Elements , I examine when the term 'space' was introduced into Western thought. Descartes is central to understanding this shift, because his understanding of extension based in terms of mathematical co-ordinates is a radical break with Greek thought. Not only does this introduce this word 'space' but, by conceiving of geometrical lines and shapes in terms of numerical co-ordinates, which can be divided, it turns something that is positioned into unpositioned. Geometric problems can be reduced to equations, the length (i.e, quantity) of lines: a problem of number. The continuum of geometry is transformed into a form of arithmetic. Geometry loses position just as the Greek notion of 'place' is transformed into the modern notion of space.     

Cognitive Complexity and Dissociative Identity Disorder

Thirteen patients with dissociative identity disorder (DID), 13 with other mental disorders, and 10 nondiagnosed comparison participants were given individual grids. Results showed that displaying alternate personalities did not portend a more multidimensional level of thinking. Instead, the nonclinical comparison group had the greater degree of complexity in comparison to both clinical groups. A notable clinical observation was that DID patients, as compared to non-DID participants, had a greater understanding and speed in completing the grid. Findings are discussed in terms of the advantages of personal construct theory for conceptualizing the construct of dissociation.