Quantitative differences in developmental profiles of spontaneous activity in cortical and hippocampal cultures

Table 1 Classifier performance at discriminating cortical from hippocampal cultures

Percentage correct at given age (DIV)
Feature	Score	7	10	11	14	17	18	21	24	25	28
CV of IBI	1.00	64	85	88	89	84	71	61	72	73	60
Theta burst	0.84	64	82	96	88	91	89	84	86	74	63
Mean correlation	0.50	67	89	96	91	86	94	89	84	75	75
Burst duration	0.33	72	86	97	91	92	90	89	82	77	83
Burst rate	0.32	78	84	97	92	90	95	89	91	74	78
% of spikes in bursts	0.25	82	86	92	94	92	94	89	87	77	79
Firing rate	0.21	83	84	94	94	90	94	92	89	74	78
NS peak	0.19	83	86	91	95	91	96	91	88	76	79
NS duration	0.19	83	89	90	92	89	93	93	86	72	78
Within-burst firing rate	0.16	83	89	96	93	92	96	93	87	77	79
NS rate	0.11	83	88	92	92	90	97	93	85	76	75

Features are listed in decreasing order of importance (score; column 2) normalised to the top score. The following numbers in each row i = 1, …, 11 are the mean percentage of correct classifications at each age using the top i features. CV, coefficient of variation; DIV, days in vitro; IBI, interburst interval; NS, network spike.

ISSN: 1749-8104