New kinds of network also were  found
1. (1986) Rumelhart et al. Backpropagation of errors. Triggered a lot of
excitement and research despite some aspects that are implausible from a biological point of view. Arguably discovered initially by Rosenblatt in the 1960’s. 

2. Kohonens self organising neural maps combined biological plausibility with proven applicability in a range of problems

Contemporary view of Brain Function

The brain processes substance called information as opposed to other organs which process metabolic products.. Now  we know that the brain is specialised into areas "cortices". Two types of data  are being processsed:

I. on the level of milliseconds patterns of activity encode data that can change continually and are presumably responsible for ST Memory/ sensations.  Sensory receptors + inter-neuron/network interaction = activity pattern

2. Slower processes take from milliseconds to years. Evolution of connection pattern. LTM synapse alteration which arguably forms the basis of brains learning
ability. Hebb 1949 "efficacy of synapse depends on correlation between pre and post synaptic activity “.

Changes on fast and slow levels are coupled in both directions. Networks have a back reaction on neurons which help to mold network which	

NB " According to current understanding the coupled non-linear dynamical processes for neuron activities and synaptic processes form the the basis for brain functioning"