?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Reticular+Activation+and+the+Dynamics+of+Neuronal+Networks&rft.creator=Wright%2C+J+J&rft.subject=Computational+Neuroscience&rft.description=It+is+postulated+that+during+arousal+the+cortical+system+is+driven+by+a+spatially+and+temporally+noisy+signal+arising+from+non-specific+reticulo-cortical+pathways.+An+elementary+unit+of+cortical+neuroanatomy+is+assumed%2C+which+permits+non-linear+dynamics+to+be+represented+by+stochastic+linear+equations.+Under+these+assumptions+the+resonant+modes+of+the+system+of+cortical+dendrites+approach+thermodynamic+equilibrium.+Specific+sensory+signals+perturb+the+dendritic+system+about+equilibrium%2C+generate+low+frequency%2C+linear%2C+non-dispersive+waves+corresponding+to+the+EEG%2C+which+in+turn+regulate+action+potential+sequences%2C+and+instantiate+internal+inputs+to+the+dendritic+field.+A+large+and+distributed+memory+capacity+in+axo-synaptic+couplings%2C+resistance+to+interference+between+functionally+separate+logical+operations%2C+and+a+very+large+next-state+function+set+emerge+as+properties+of+the+network.+The+model+is+able+to+explain+the+close+association+of+the+EEG+with+cognition%2C+the+channel+of+low+capacity+corresponding+to+the+field+of+immediate+attention%2C+the+low+overall+correlation+of+action+potentials+with+EEG%2C+and+specificity+of+action+potentials+in+some+neurons+during+particular+cognitive+activity+Predictions+made+from+hypothesis+include+features+of+thermal+equilibrium+in+EEG+(determinable+by+autoregression)+and+expectation+that+the+cortical+evoked+response+can+be+accounted+for+as+the+response+to+a+sensory+impulse+of+specific+time+characteristics.&rft.date=1990&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=text%2Fhtml&rft.identifier=http%3A%2F%2Fcogprints.org%2F17%2F1%2Fpaper5.html&rft.identifier=++Wright%2C+J+J++(1990)+Reticular+Activation+and+the+Dynamics+of+Neuronal+Networks.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F17%2F