The Science Behind Internal vs. External Cues

Internal and external cues are used constantly in baseball, and in sport as a whole. External cues direct an athlete’s attention towards the environment or the outcome of a movement, while internal cues focus attention on the athlete’s own body or specific movement patterns. Research generally shows that external cues tend to produce better performance and learning outcomes, but internal cues still have value, especially when introducing a new skill or helping an athlete develop awareness of a movement pattern they don’t yet understand well (Castaneda & Gray, 2007). Coaches use both types of cues to help athletes move in a certain way or accomplish a specific task. Some coaches strongly prefer external cues, while others rely more heavily on internal cues. In reality, both can be effective, depending on the athlete and the context. Before diving deeper into how and when to use each type of cue, it’s important to understand how the brain functions during early skill acquisition and how it processes and organizes these cues.

Pre-Frontal Cortex and Automation

According to Miller & Cohen (2001), the pre-frontal cortex “is a collection of interconnected neocortical areas that sends and receives projections from virtually all cortical sensory systems, motor systems, and many subcortical structures.” This makes the prefrontal cortex especially relevant to internal cues, external cues, and hitting performance. It plays a key role when behavior needs to be consciously guided rather than automatically executed, such as when an athlete is learning a new skill or making a mechanical adjustment (Miller & Cohen, 2001). Early in skill acquisition, these action links are weak or unstable, so the prefrontal cortex helps organize attention and guide movement through conscious control (Miller & Cohen, 2001). However, as practice accumulates and neural pathways strengthen, the skill becomes more efficient and automatic (Miller & Cohen, 2001). At that point, execution relies less on the prefrontal cortex, freeing attention for perception and decision-making.

A simple analogy used in Miller & Cohen (2001) is crossing the street. If you are accustomed to looking right before stepping into the road, traveling to a country where traffic approaches from the left requires conscious correction. Initially, the prefrontal cortex intervenes to override the response and redirect attention. With repeated exposure, looking left first becomes automatic, and conscious control is no longer required (Miller & Cohen, 2001).

In hitting, the same process occurs. Hitters learn new skills and movements, but as these become ingrained through repetition, the skill or movement can function automatically, without heavy involvement from conscious control from the pre-frontal cortex.

When Internal Cues Can Be Beneficial

Internal cues refer to conscious thoughts about one’s own body movements. Because they require deliberate attention and control, they occupy a large portion of available working memory (Beilock et al., 2002). At first glance, this seems counterproductive for performance. However, internal cues can be highly beneficial during the early stages of skill acquisition.

Research consistently shows that internal cues are most effective when an athlete is learning a new skill or movement pattern (Castaneda & Gray, 2007). In Castaneda & Gray (2007), researchers compared high-skill and low-skill athletes and found that lower-skill athletes demonstrated greater improvements when using skill-focused (internal) cues. Similarly, Beilock et al. (2002) examined skilled soccer players and novices performing a dribbling task under both dual-task and skill-focused conditions. The dual-task condition involved dribbling through a course with a secondary task of auditory word monitoring (external). In the skill-focused condition, dribblers had to focus on the side of the foot that last made contact with the ball (internal).The results showed that novices dribbled more effectively with both feet when instructed to focus internally on the skill (Beilock et al., 2002).

This occurs because learning a new movement requires the development of new neural pathways (Miller & Cohen, 2001). During this stage, the prefrontal cortex (PFC) plays a critical role by consciously guiding and controlling movement execution (Miller & Cohen, 2001). Until the movement becomes sufficiently learned and automated, top-down control from the PFC is necessary to establish the correct motor pattern. For this reason, coaches should consider using internal cues when working with athletes who are new to baseball or learning a new skill or movement.

Downfalls of Internal Cues

While internal cues can be effective for novices, they often become detrimental for skilled or expert athletes. A large body of research shows that internal focus significantly impairs performance in experienced performers. According to Wulf & Prinz (2001), “an internal attentional focus constrains the motor system by interfering with natural control processes.” In other words, focusing internally disrupts the automaticity that underlies skilled movement execution (Castaneda & Gray, 2007).

Once a skill has been learned and reinforced through extensive practice, conscious attention is no longer required for effective performance (Beilock et al., 2002). In fact, reintroducing conscious control can be harmful. Research examining performance under pressure demonstrates that athletes often shift their attention inward, attempting to consciously control movements that are normally automatic (Beilock & Gray, 2012). This phenomenon leads to performance breakdowns, commonly referred to as “choking.”

Under pressure, automatic motor behaviors become broken down into consciously controlled steps (Beilock & Gray, 2012). Each step must then be processed individually rather than as part of a smooth, integrated motor program. This increases cognitive load, slows processing speed, and raises the likelihood of errors (Beilock & Gray, 2012). Movements that once ran efficiently in the background are now being micromanaged by conscious thought, ultimately degrading performance.

Why External Focus Enhances Performance

Overall, an external focus of attention consistently leads to superior performance, particularly in skilled athletes. As discussed earlier, the brain and motor system work together to automate movements through repetition and practice (Castaneda & Gray, 2007, Miller & Cohen, 2001, Wulf et al., 2001, Beilock & Gray, 2012). Once a skill is well learned, it is controlled largely by automatic motor processes rather than conscious thought.

External cues support this automaticity. By directing attention toward the environment or the intended movement effect, athletes avoid consciously interfering with movements that the motor system already knows how to perform efficiently (Wulf et al., 2001). This prevents unnecessary cognitive load and allows the brain to operate in a more efficient, fluid manner. For experienced athletes, external cues are especially important because they preserve the natural coordination and timing of well-learned motor patterns.

Evidence from dual-task research further supports this idea. In Castaneda & Gray (2007), the environment-focused (task-relevant external cue) condition resulted in better performance and learning compared to skill-focused conditions. Similarly, in Experiment 1 of Beilock et al. (2002), experienced golfers performed putting tasks under both dual-task and skill-focused conditions. The dual-task condition involved a primary task of putting with a secondary task on auditory sounds. The skill-focused condition was seeing the exact moment when the club head stopped on the follow through. Performance was superior during the dual-task condition (Beilock et al., 2002). Because attention was partially occupied by a secondary task, golfers were less likely to consciously monitor their putting stroke. This reduced internal interference and allowed the automatic motor program to run more effectively (Beilock et al., 2002).

The same principle has been demonstrated in other studies as well. In Kershner (2017), Division 1 baseball players showed improved jump performance when using an external focus compared to an internal focus (Kershner, 2017). This highlights that even highly trained athletes benefit when attention is directed toward movement outcomes rather than body mechanics.

Taken together, these findings suggest that external cues enhance performance by reducing conscious control, minimizing working memory demands, and allowing automatic motor processes to function without disruption.

How to Apply This as a Coach

External cues tend to be more effective in the majority of training situations. In my experience, unless I’m working with a younger or very inexperienced player, external cues consistently produce better results than internal ones. Internal cues often bog hitters down by pulling their attention toward body mechanics, which increases cognitive load and interferes with fluid movement.

This becomes even more important in challenging training environments. I frequently place hitters in difficult, game-like conditions to develop adaptability and decision-making. If I continue layering internal cues onto those environments, hitters tend to become overly self-focused and mentally overloaded. Instead of competing and reacting, they start trying to consciously control movements that should be automatic.

By keeping cues external, hitters can direct the majority of their attention toward the task itself. This promotes more natural movement, better timing, and improved performance. External cues help hitters stay in an outcome-focused, process-based mindset rather than a mechanical, overthinking one.

References:

Beilock, S. L., & Gray, R. (2012). Why do athletes choke under pressure? In G. Tenenbaum, R. C. Eklund, & A. Kamata (Eds.), Handbook of sport psychology (3rd ed., pp. 425–444). Wiley.

Beilock, S. L., Carr, T. H., MacMahon, C., & Starkes, J. L. (2002). When paying attention becomes counterproductive: Impact of divided versus skill-focused attention on novice and experienced performance of sensorimotor skills. Journal of Experimental Psychology: Applied, 8(1), 6–16. https://doi.org/10.1037/1076-898X.8.1.6

Castaneda, B., & Gray, R. (2007). Effects of focus of attention on baseball batting performance in players of differing skill levels. Journal of Sport & Exercise Psychology, 29(1), 60–77. https://doi.org/10.1123/jsep.29.1.60

Kershner, A. L. (2017). The effect of internal vs. external focus of attention instructions on countermovement jump variables in NCAA Division I baseball players

Miller, E. K., & Cohen, J. D. (2001). An integrative theory of prefrontal cortex function. Annual Review of Neuroscience, 24, 167–202. https://doi.org/10.1146/annurev.neuro.24.1.167

Noroozi, T., Saemi, E., Doustan, M., Singh, H., & Aiken, C. A. (2024). The effect of internal, external, and holistic focus of attention on standing long jump performance in novice and skilled karatekas. European Journal of Sport Science, 24(7), 930–937. https://doi.org/10.1002/ejsc.12152

Wulf, G., & Prinz, W. (2001). Directing attention to movement effects enhances learning: A review. Psychonomic Bulletin & Review, 8(4), 648–660. https://doi.org/10.3758/BF03196201

Wulf, G. (2013). Attentional focus and motor learning: A review of 15 years. International Review of Sport and Exercise Psychology, 6(1), 77–104. https://doi.org/10.1080/1750984X.2012.723728

Wulf, G., McNevin, N., & Shea, C. H. (2001). The automaticity of complex motor skill learning as a function of attentional focus. The Quarterly Journal of Experimental Psychology, 54(4), 1143–1154.