Not always the same, sad. Psychophysiological correlates of low or high approach motivation sadness.
@article{Kaminska2017NotAT, title={Not always the same, sad. Psychophysiological correlates of low or high approach motivation sadness.}, author={Olga Kaminska and Mikolaj Magnuski}, journal={Frontiers in Human Neuroscience}, year={2017}, volume={11} }