The correct answer is the Cannon-Bard theory of emotion.
The Cannon-Bard theory of emotion states that the brain region called the thalamus plays a major role in experiencing emotions. According to this theory, when experiencing an event, information is transmitted to the thalamus, which in turn relays information the brain cortex and amygdala. The brain cortex and amygdala make us respond emotionally to stimuli. Since Lashley is skeptical of the thalamus's role in processing emotions, he is criticizing the Cannon-Bard theory of emotion.