Table 1. Characteristics of in vivo and in vitro MGB responses to periodic stimuli.

Response Type	Synchronized	Non-synchronized	Mixed
Latency	Short latency	Long latency	Short/Long latency
Synchrony	High vector strength, low pass	Low vector strength, non-synchronized	High vector strength, low-pass
Rate encoding	Low pass/band pass rate	High pass/band pass rate	Two rate regimes separated by worst modulation freq. or band pass
Source	Inherited from IC inputs	Created in MGB	Inherited from IC?
MGB Region	Generally in MGV	Generally in MGD	Generally in MGV
Putative Synaptic Source	Large IC terminals	Small IC terminals	Large and Small terminals or separate population?
Putative Plasticity	Depression	AMPA depression, NMDA facilitation (Mixed plasticity)	Facilitation or depression and facilitation

The Synchronized, Non- synchronized and Mixed categories refer to in vivo responses described in Bartlett and Wang [5], [6] and Lu et al. [4].