Social psychological research on thinking has generally focused on the attitudes, emotions, motivations, and biases that affect thinking and consequent behavior. What has received less attention is the speed of thinking: how quickly thinking occurs and whether thoughts accelerate or slow down. Communication design and processing may take for granted that the structure and reception of messages occur at a certain speed. Recent findings from the psychological study of thought speed shed light on ways that this research may be applied to health communication. Fast and slow rates of thinking are correlated with distinct patterns of affective, cognitive, physiological, and behavioral events. Fast thinking is associated with positive mood, energy, approach motivation, arousal, creativity, and risk-taking. Slow thinking is associated with negative mood and depression, low energy, and cognitive impairment. Potential theories exist for why psychological and physiological experiences are associated with thought speed.
Recent experimental research demonstrates that thought speed can be successfully manipulated to elicit psychological effects, and it can be manipulated independent of thought content. Researchers, healthcare practitioners, and communicators should be aware of the psychological correlates and consequences of thought speed and consider harnessing the effects of thought speed to augment communication. Thought acceleration and deceleration can be integrated into the design and processing of health communication.