Transforming Masculinist Political Cultures? Doing Politics in New Political Institutions

In the devolved legislative assemblies of Scotland and Wales the proportion of women representatives is approaching parity. This is in marked contrast to Westminster where one in five MPs are women. In this paper we explore the extent to which the masculinist political cultures characterising established political institutions are being reproduced in the National Assembly for Wales or whether its different gendering, both in the numbers of women representatives and in terms of its institutional framework, is associated with a more feminised political and organisational culture. Drawing on interviews with half the Assembly Members, women and men, we show that the political style of the Assembly differs from that of Westminster and that Assembly Members perceive it as being more consensual and as embodying a less aggressive and macho way of doing politics. AMs relate this difference to the gender parity amongst Assembly Members, to the institutional arrangements which have an \'absolute duty\' to promote equality embedded in them, and to the desire to develop a different way of doing politics. We suggest that the ability to do politics in a more feminised and consensual way relates not only to the presence of a significant proportion of women representatives, but also to the nature of the institution and the way in which differently gendered processes and practices are embedded within it. Differently gendered political institutions can develop a more feminised political culture which provides an alternative to the masculinist political culture characterising the political domain.Gender, Political Culture, New Political Institutions, Consensus Politics, Political Style, National Assembly for Wales

Does Devolution make a difference? A comparison of party-group interaction in the Scottish Parliament and the Welsh Assembly.

Significant research has been dedicated to the question what roles members of parliament play within an assembly and how they shape them individually. (e.g. Searing 1994, Patzelt 1995, 1997, Müller et al 2001). Findings show that some differences in parliamentarians’ roles and behaviour are tied to the party’s status in parliament. However, most of the analyses in this field (exception: Müller et al 2001) do not consider how these characteristics are linked with the overall appearance of particular parliamentary party groups (PPGs) and their political strategies. Research conducted on the Bavarian Parliament (Steinack 2007 a, b) shows significant differences in PPGs’ strategies that relate to the MPs’ socio-demographic background and the party groups’ history and discussion culture. Based on preliminary results of an ongoing research project, the paper outlines how structural differences between parliamentary party groups in the devolved assemblies in Scotland and Wales shape strategies and political styles of their representatives. Interviews with members and clerks of the assemblies illustrate the findings

Computing motion in the primate's visual system

Computing motion on the basis of the time-varying image intensity is a difficult problem for both artificial and biological vision systems. We will show how one well-known gradient-based computer algorithm for estimating visual motion can be implemented within the primate's visual system. This relaxation algorithm computes the optical flow field by minimizing a variational functional of a form commonly encountered in early vision, and is performed in two steps. In the first stage, local motion is computed, while in the second stage spatial integration occurs. Neurons in the second stage represent the optical flow field via a population-coding scheme, such that the vector sum of all neurons at each location codes for the direction and magnitude of the velocity at that location. The resulting network maps onto the magnocellular pathway of the primate visual system, in particular onto cells in the primary visual cortex (V1) as well as onto cells in the middle temporal area (MT). Our algorithm mimics a number of psychophysical phenomena and illusions (perception of coherent plaids, motion capture, motion coherence) as well as electrophysiological recordings. Thus, a single unifying principle ‘the final optical flow should be as smooth as possible’ (except at isolated motion discontinuities) explains a large number of phenomena and links single-cell behavior with perception and computational theory

Computing optical flow in the primate visual system

Computing motion on the basis of the time-varying image intensity is a difficult problem for both artificial and biological vision systems. We show how gradient models, a well-known class of motion algorithms, can be implemented within the magnocellular pathway of the primate's visual system. Our cooperative algorithm computes optical flow in two steps. In the first stage, assumed to be located in primary visual cortex, local motion is measured while spatial integration occurs in the second stage, assumed to be located in the middle temporal area (MT). The final optical flow is extracted in this second stage using population coding, such that the velocity is represented by the vector sum of neurons coding for motion in different directions. Our theory, relating the single-cell to the perceptual level, accounts for a number of psychophysical and electrophysiological observations and illusions

Mungo and StMungo: tools for typechecking protocols in Java

We present two tools that support static typechecking of communica- tion protocols in Java. Mungo associates Java classes with typestate specifications, which are state machines defining permitted sequences of method calls. StMungo translates a communication protocol specified in the Scribble protocol description language into a typestate specification for each role in the protocol by following the message sequence. Role implementations can be typechecked by Mungo to ensure that they satisfy their protocols, and then compiled as usual with javac. We demonstrate the Scribble, StMungo and Mungo toolchain via a typechecked POP3 client that can communicate with a real-world POP3 server

Correlated connectivity and the distribution of firing rates in the neocortex

Two recent experimental observations pose a challenge to many cortical models. First, the activity in the auditory cortex is sparse, and firing rates can be described by a lognormal distribution. Second, the distribution of non-zero synaptic strengths between nearby cortical neurons can also be described by a lognormal distribution. Here we use a simple model of cortical activity to reconcile these observations. The model makes the experimentally testable prediction that synaptic efficacies onto a given cortical neuron are statistically correlated, i.e. it predicts that some neurons receive many more strong connections than other neurons. We propose a simple Hebb-like learning rule which gives rise to both lognormal firing rates and synaptic efficacies. Our results represent a first step toward reconciling sparse activity and sparse connectivity in cortical networks