CMAC neural network has only one adjustable weight layer. Its first layer is fixed and maps input space to association vector through receptive fields. Receptive field of standard CMAC is in shape of square function of given width. Lot of research now is done around different shapes for receptive fields, and combination with other connectionist structures. This paper will deal with the topics o...

Star-nosed moles have an extraordinary mechanosensory system consisting of 22 densely innervated nasal appendages covered with thousands of sensitive touch domes. A single appendage acts as the fovea and the star is constantly shifted to touch this foveal appendage to objects of interest. Here we investigated the receptive fields on the star and the response properties of 144 neurons in the mol...

Examinations are used to evaluate individual student learning. Therefore, fair and consistent administration practices are essential. One issue associated with testing administration practices includes whether or not students should be allowed to ask questions during exams and how faculty should respond. Findings from this descriptive study indicate that faculty believe answering questions disr...

Receptive fields of 382 neurons in the pulvinar were investigated. The observed receptive fields were classified according to the neurons’ responses to stationary flashing light spots positioned in different parts of the receptive field. New receptive field types with multiple discharge centers were observed. Neurons with these receptive fields generally responded with multimodal discharges to ...

Neurons in the lateral intraparietal area of the monkey (LIP) have visual receptive fields in retinotopic coordinates when studied in a fixation task. However, in the period immediately surrounding a saccade these receptive fields often shift, so that a briefly flashed stimulus outside the receptive field will drive the neurons if the eye movement will bring the spatial location of that vanishe...

In this study, we characterize the adaptation of neurons in the cat lateral geniculate nucleus to changes in stimulus contrast and correlations. By comparing responses to high- and low-contrast natural scene movie and white noise stimuli, we show that an increase in contrast or correlations results in receptive fields with faster temporal dynamics and stronger antagonistic surrounds, as well as...

Male and female rats that were handled from birth to 30 days had increased adrenal weight at weaning. The animals were then rehoused in (a) groups of 10 in a large cage with an enriched environment, (b) a small cage in pairs, or (c) a small cage alone. Isolation advanced and enrichment retarded vaginal opening (in comparison with paired animals) in handled and unhandled females. Puberty was acc...

Receptive fields in the visual cortex can be altered by changing the visual environment, as has been shown many times in deprivation experiments. In this paper we simulate this set of experiments using two different models of cortical plasticity, BCM and PCA. The visual environment used is composed of natural images for open eye and of noise for closed eyes. We measure the response of the neuro...

the purpose of the present study was to provide empirical support for the construct of the involvement load hypothesis (ilh ) in an efl context. to fulfill the purpose of the study, 4 intact groups consisting of 126 intermediate-level students participated in this experiment. in order to ensure that the participants were at the same level of english language proficiency, the nelson test was adm...