This study establishes a cortical map of the somatosensory periphery of the mouse head, with emphasis on the whisker pad. Data in the literature on the projection of the common hair follicles are confusing, notably the question whether or not this projection is separated from or overlaps with that of the facial vibrissae, the barrelfield. Microelectrode… (More)
A possible role fore peripheral unmyelinated fibres on the establishment and maintenance of stable receptive fields mediated by myelinated afferents has been studied in the mouse cortical barrelfield. The barrels are cytoarchitectonic units consituting a visible and particularly precise somatotopic map of the facial vibrissae. Barrelfields were mapped… (More)
Loyez' myelin stain sometimes impregnates the perikarya and processes of neurons. This is rare in normal adult mice, but can be provoked by various means including electrical stimulation and mild ischaemia shortly before fixation. Passing a direct current or a train of pulses across the dura of the cerebral cortex produces a patch at the site of stimulation… (More)
A very simple method for making varnish-coated, low resistance, fine tip microelectrodes is presented. No plating of the tip is necessary.
1. An isolated spinal cord-peripheral nerve preparation of the newborn rat was developed. In this preparation it is possible to record spinal reflexes from a lumbar ventral root in response to stimulation of the ipsilateral saphenous or obturator nerve. 2. Single shock, weak intensity stimulation of the saphenous nerve induced a fast conducted compound… (More)
This largely methodological paper focuses on how to define the social economy and its governance at the local and especially the urban neighbourhood level. A distinction is made between essentialist and holistic definitions. The second section appraises the potential contribution of various current ideas in institutional economics and economic sociology to… (More)