How does auditory cortex respond to silence? In this issue of Neuron, show that activity in macaque auditory cortex is highly structured even in the absence of sensory stimuli. These data reveal a close link between spontaneous neural activity and the functional organization of auditory cortex.

The paper is focused on practical application of Cambridge Correlator. The goal is to propose a traffic signs inventory system by using excellent characteristics of correlator in the rapid optical correlation. The proposal of this inventory system includes obtaining of traffic signs to create the database either collecting the GPS coordinates. It is necessary to know the traffic signs position ...

Orientation is a dimension much studied in visual neuroscience. Many single cells in the visual cortex respond to lines or edges in specific orientations, and in monkey cortex these cells are specific for lines within ±20° of the preferred orientation. One class of illusion, involving perception of orientation, can direct us towards interpretations of neural function (in this series, referred t...

This book contains, first, a scheme or syllabus to show the Pr?Per method for the systematic clinical investigation of disease, secondly, under the heading of the various organs, an index ? the chief symptoms and signs met with in different diseases. index also gives a brief account of some important symp?ms> of the alterations of the excretions in disease, and an ^planation of the scientific t...

Bilcik, B. and L. J. Keeling (1999). "Changes in feather condition in relation to feather pecking and aggressive behaviour in laying hens." British Poultry Science 40(4): 444-451. 1. The aim of this experiment was to describe and examine the relationship between pecks received by individual birds and the feather and skin damage of those birds at different ages. The effect of group size was also...

We consider some questions related to the signs of Hecke eigenvalues or Fourier coefficients of classical modular forms. One problem is to determine to what extent those signs, for suitable sets of primes, determine uniquely the modular form, and we give both individual and statistical results. The second problem, which has been considered by a number of authors, is to determine the size, in te...

Human knowledge is intentional, as opposed to ‘knowledge’ represented by the computer, which is syntactic. The premise of this paper is that nevertheless a process model of cognition can be defined which is isomorphic and analogous to Peirce’s 9-adic classification of signs. An advantage of the relation with the Peircean concepts lies in the model’s potential for the definition of a ‘natural’ r...

The list of microbes that cause fever in children is extensive. Relative importance of specific agents varies with age, season, and associated symptoms. The focus of this chapter is the febrile child with occult bacterial infection. Table 14-1 shows the most common causes of serious bacterial infection in children younger than 3 months. The division at 1 month is not absolute; considerable over...