Cannon-Bard Theory of Emotion (1927)

The Cannon–Bard Theory of emotion, developed by American physiologist Walter B. Cannon and later refined with his doctoral student Philip Bard in 1927, challenged the earlier James–Lange theory by proposing that emotional experience and physiological arousal occur simultaneously and independently rather than sequentially. Based on neurological research into the thalamus, Cannon argued that when an emotionally significant stimulus is perceived, the brain sends parallel signals, one to the cerebral cortex producing the subjective feeling (such as fear or joy) and another to the autonomic nervous system producing bodily changes (such as increased heart rate), thereby explaining how individuals can experience emotion even when typical bodily feedback is altered (Cannon, 1927; Bard, 1928). From a Christian perspective, this integrated yet differentiated understanding of mind and body resonates with the Biblical view of the human person as a unified psychosomatic being, formed from “the dust of the ground” and animated by the “breath of life” (Genesis 2:7, ESV), in whom inner experience and bodily life are deeply intertwined, as seen in the Psalms’ portrayal of emotional states affecting physical vitality (Psalm 42:11) and in Jesus’ own embodied emotional life (John 11:35). Theologically, Cannon and Bard’s work can be appreciated as part of humanity’s mandate to study creation (Genesis 1:28), offering insight into the God-designed mechanisms through which emotions function, while also reminding believers that emotions, though biologically grounded, are not morally ultimate but are to be shaped by renewed minds (Romans 12:2). Practically, the Cannon–Bard theory contributes to personal wellbeing by normalising intense emotional experiences, showing that bodily reactions do not solely define emotional truth. The theory supports societal health by informing trauma care, mental health treatment, and compassionate social policies that recognise the complex neurobiological dimensions of human feeling.