Extensive neuroscientific literature confirms that Hebbian learning mechanisms strengthen synapses based on the precise timing and simultaneous firing of pre- and postsynaptic neurons.
The retrieved papers provide robust, consistent empirical support for spike timing-dependent plasticity (STDP) and Hebbian learning rules, where synchronous pre- and postsynaptic activity dictates synaptic strengthening or weakening. There are no refuting studies in the provided set.