Towards a Brain-Sensitive Intelligent Tutoring System: Detecting Emotions from Brainwaves

Table 5

Percentages of observations of the three major emotions as a function of rating classes.

Rating classes	Rating frequencies, percentage (on 31599)
	Pleasure (p)		Arousal (a)		Dominance (d)
{1,1.5}	1349	04%	71	01%	—	—
{2,2.5}	4528	14%	1825	06%	778	02%
{3,3.5}	4393	15%	5345	17%	5519	17%
{4,4.5}	3546	11%	8479	26%	5779	19%
{5,5.5}	5458	17%	9893	31%	11124	35%
{6,6.5}	6292	20%	5412	17%	8018	26%
{7,7.5}	5523	17%	574	02%	381	01%
{8,8.5,9}	510	02%	—	—	—	—