On the Role of Dopamine in Cognitive Vision

Abstract. Although dopamine is one of the most studied neurotransmitter in the brain, its exact function is still unclear. This short review focuses on its role in different levels of cognitive vision: visual processing, visual attention and working memory. Dopamine can influence cognitive vision either through direct modulation of visual cells or through gating of basal ganglia functioning. Even if its classically assigned role is to signal reward prediction error, we review evidence that dopamine is also involved in novelty detection and attention shifting and discuss the possible implications for computational modeling.

Accountancy on the periphery: the profession in Exeter to 1939

This paper presents an historical case study of the accountancy profession in the English cathedral city and county town of Exeter. Inter alia, it examines the idea that the formation of professional accountancy bodies served not only to enhance the collective economic status and social mobility of their members but also, in the case of a city like Exeter located on the periphery of the UK, to enhance their geographical mobility. The emphases of the paper are on the growth in the numbers of accountants, migration of accountants (both within the UK and overseas), and the overlapping 'jurisdictions' of accountants with other professions. Exeter's experience is compared and contrasted with that of the UK as a whole and suggestions are made for further research. The paper includes data on professional accountants qualifying in and/or working in Exeter from the late 1870s to the outbreak of the World War II in 1939.accountancy profession, Exeter, jurisdiction, migration, periphery,

Storage ring at HIE-ISOLDE: technical design report

We propose to install a storage ring at an ISOL-type radioactive beam facility for the first time. Specifically, we intend to setup the heavy-ion, low-energy ring TSR at the HIE-ISOLDE facility in CERN, Geneva. Such a facility will provide a capability for experiments with stored secondary beams that is unique in the world. The envisaged physics programme is rich and varied, spanning from investigations of nuclear ground-state properties and reaction studies of astrophysical relevance, to investigations with highly-charged ions and pure isomeric beams. The TSR might also be employed for removal of isobaric contaminants from stored ion beams and for systematic studies within the neutrino beam programme. In addition to experiments performed using beams recirculating within the ring, cooled beams can also be extracted and exploited by external spectrometers for high-precision measurements. The existing TSR, which is presently in operation at the Max-Planck Institute for Nuclear Physics in Heidelberg, is well-suited and can be employed for this purpose. The physics cases as well as technical details of the existing ring facility and of the beam and infrastructure requirements at HIE-ISOLDE are discussed in the present technical design report