The Open UniversitySkip to content
 

A dynamic neural substrate and automatic perception switching

McQuoid, Malcolm R. J. and Dobbyn, Chris H. (1996). A dynamic neural substrate and automatic perception switching. Connection Science, 8(1) pp. 55–77.

DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1080/095400996116956
Google Scholar: Look up in Google Scholar

Abstract

This paper presents DENN, a dynamic neural network or neural substrate having a number of abilities that might allow it to play a useful role as a constituent of an artificial cognitive system, handling the task of low-level perceptual processing. DENN can adapt without supervision to new objects, is able to respond to patterns of activation from several objects presented simultaneously to it, and is able to automatically switch its perception between multiple objects. It is based on an ideal neural substrate as conjectured by Dimond (1980), having the twin capabilities of autonomous learning and memory, capabilities emerging due to the use of autonomous neurons. DENN has a pyramidal architecture and its neurons have topologically organized receptive fields. Through training, the neurons become feature detectors, with the higher level neurons responding to more complex features. The neurons respond to a retinal input with an oscillatory output whose frequency depends only on their own input. Due to developing phase differences, the higher level neurons can move out of phase relative to each other. Therefore, different inputs are recognized cyclically-a process we term 'automatic perception switching'. Experiments verified the system's ability of automatic perception switching, investigated its response to randomized images, and compared the performance of adaptive and non-adaptive versions of the neural substrate.

Item Type: Journal Article
Copyright Holders: 1996 Journals Oxford Ltd
ISSN: 1360-0494
Keywords: cognition; perception switching; unsupervised learning; simultaneous objects; neural substrate; dynamic neurons
Academic Unit/Department: Mathematics, Computing and Technology > Computing & Communications
Interdisciplinary Research Centre: Centre for Research in Computing (CRC)
Item ID: 26120
Depositing User: Chris Dobbyn
Date Deposited: 27 Apr 2011 12:39
Last Modified: 24 Nov 2014 11:37
URI: http://oro.open.ac.uk/id/eprint/26120
Share this page:

Altmetrics

Scopus Citations

Actions (login may be required)

View Item
Report issue / request change

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340   general-enquiries@open.ac.uk