Motivation and emotion/Book/2024/Environmental cues and habits

Environmental cues and habits:
How do environmental cues facilitate habit formation?

Overview

Case study of Alex

Figure 1. A sedentary lifestyle can negatively impact your health

Alex is a university student who spends long hours at a desk studying (see Figure 1). She had been feeling the effects of a sedentary lifestyle, including fatigue and occasional back pain. Determined to improve her health, she decided to try developing a new habit of taking regular breaks to stretch and walk throughout the study day. Initially, she planned to take a five-minute break every hour to do a quick stretching routine. However, despite her best intentions, she often found herself glued to her screen, missing the breaks and feeling frustrated with her lack of progress.

Alex’s struggle highlights a common issue: forming new habits can be challenging, even with good intentions.

To understand why Alex’s new habit is not forming, we need to explore the role of environmental cues in habit formation. Habits develop through a cycle of cues, routines, and rewards. In Alex’s situation, the absence of effective cues means the routine of stretching and walking is not being triggered as intended.

Habits are behaviours that are automatically triggered by specific environmental cues and shaped through repetition. According to Diefenbacher et al. (2023), a habit occurs automatically in response to specific cues, often without conscious thought. These habits are typically formed through repeated actions in the same context, which strengthens the link between the context and the behaviour, leading to automatic responses over time (Gardner & Lally, 2018). Environmental cues, such as objects, locations, or routines, play a crucial role in habit formation by prompting automatic actions without conscious decision-making (Gardner et al., 2023). For example, seeing a familiar coffee shop on the way to work might automatically prompt a stop for coffee, reinforcing the habit of daily coffee consumption. Thus, understanding and leveraging environmental cues can be a powerful tool for changing habits and influencing behaviour. Changing or controlling environmental cues can effectively influence behaviour. Reducing exposure to cues that trigger unhealthy habits can help disrupt the behaviour. Conversely, introducing cues that promote desired behaviours can foster healthier behaviour. By gaining insight into the role of environmental cues, we are able to create practical interventions in public health, personal development, and behavioural modification (Marteau et al., 2020).

Focus questions:

How are habits formed?
How do environmental cues facilitate the formation and maintenance of habits?
How can environmental cues be used in behaviour change?
What are the challenges and limitations related to environmental cues in habit formation?

The process of habit formation

To design effective behavioural interventions and to develop personal growth, it is essential to understand the mechanisms of habit formation. As a result of environmental cues, habits become automatic over time, and they are triggered without conscious effort (Fritz et al., 2020). According to a meta-analysis of research on measures of the habit construct, Hagger et al. (2023) discovered that habits influence behaviour more strongly than intentions. Understanding the connection between habits and behaviour is essential for designing interventions that promote long-term behaviour change.

Mechanisms of habit formation

Figure 2. The habit loop framework illustrates the process of habit formation.

A key concept in habit formation frameworks is the habit loop, a three-step cycle that links specific triggers with automatic behaviour (see Figure 2). The cycle begins with a cue, which initiates a routine behaviour, followed by a reward that reinforces the behaviour by providing a positive outcome (Lally et al., 2010). Throughout the repetition of this cycle, the brain learns to associate the cue with the routine and its reward, thus solidifying the habit (Chen et al., 2020). To illustrate, consider the coffee shop example discussed earlier. Passing a coffee shop on the way to work (cue) may prompt stopping for a coffee (routine), which brings a sense of relaxation (reward). As this cycle repeats in a consistent context, the behaviour becomes more automatic and ingrained.

Figure 3. Key brain regions involved in the process of habit formation.

Habit formation engages several key brain regions, including the prefrontal cortex, the basal ganglia, and the cerebellum (see Figure 3). Initially, the prefrontal cortex takes charge of new behaviours by managing decision-making and planning (Amaya & Smith, 2018). As habits form, this control moves to the basal ganglia, particularly a region known as the striatum, which stores and retrieves behaviours while linking them to rewards (Lerner, 2020). The cerebellum plays a role in coordinating these actions. Over time, as the behaviour becomes more automatic, the need for conscious effort decreases, and the striatum continually reinforces the habit, making it more difficult to change.

As habits are repeated, their strength increases due to the reinforcement of neural pathways. This reinforcement allows behaviours to become more automatic and resistant to change (Wood & Rünger, 2016). Each repetition strengthens the connections between neurons, reducing the energy needed for neural firing and making the behaviour easier to perform. As a behaviour is more frequently triggered by a specific cue, the habit becomes stronger and more ingrained over time.

Role of repetition and consistency

Repetition plays a crucial role in strengthening neural pathways, making behaviours more automatic and less reliant on conscious thought (Carden & Wood, 2018). Research by Lally et al. (2010) suggests that it takes an average of 66 days for a behaviour to become automatic, emphasising the importance of repeated actions. Consistency further solidifies habits, with regular performance over time making behaviours more resistant to change (Lally & Gardner, 2013). However, maintaining consistent environmental cues is equally important, as changes in context can disrupt habit formation (Neal et al., 2012). Performing a behaviour consistently within the same context strengthens the association between the environment and the behaviour, as seen in habits like brushing teeth each morning and evening, which become automatic through repeated practice.

Influence of environmental context

Environmental cues are essential for triggering habitual behaviours, as they provide the context in which the habit was formed. For instance, seeing a pair of running shoes may prompt a workout, automatically activating the behaviour associated with that cue (Linder et al., 2022). Disruptions to the environment, such as moving to a new location, can break the connection between context and behaviour, leading to the breakdown of established routines (Gardner et al., 2023). Memories and habits are tightly connected to specific contexts, meaning changes in the environment can affect both the recall of past behaviours and the formation of new ones (Amaya & Smith, 2018). For example, prospective memory, the ability to remember to perform an action at the right time, often depends on contextual cues like time or past actions to initiate a behaviour (Judah et al., 2013). Action planning further strengthens the relationship between environmental cues and habitual behaviours. By specifying behaviours to be performed in particular contexts, these associations are reinforced over time. As these connections are repeated, they become automatic, shifting control from conscious effort to unconscious processes (Stawarz et al., 2020). This highlights the importance of consistent environmental contexts in shaping and maintaining habitual behaviours.

Types of environmental cues

Environmental cues are external stimuli that trigger automatic behaviour. The three main categories of environmental cues are physical, social, and temporal.

Physical cues:

Objects and locations in the environment can strongly influence behaviour. For example, seeing a yoga mat may prompt someone to practice yoga, while an organised workspace can trigger productivity (Smith & Graybiel, 2016). Clutter-free environments promote positive habits, while chaotic spaces can hinder them. Strategies like placing reminders in visible locations help reinforce desired behaviours (Carden & Wood, 2018).

Social cues:

Social interactions and group norms also trigger behaviour. Exercising with a friend, for instance, can encourage adherence to fitness routines. Social support and accountability are crucial for habit maintenance, particularly for individuals who are more socially motivated (Harvey et al., 2022).

Temporal cues:

Time-based cues, such as routines, provide regular prompts that help establish habits. Morning rituals, for example, offer consistent triggers for specific behaviours. Incorporating habits into established routines increases consistency and adherence (Harvey et al., 2022).

Strategies for utilising environmental cues in habit formation

Effectively leveraging environmental cues is essential for both the formation and maintenance of habits. By creating supportive contexts, individuals are more likely to engage in and sustain desired behaviours.

Designing environments to support positive habits

Designing environments that promote positive behaviours involves strategically placing cues and reducing distractions. For example, keeping healthy snacks within sight can encourage better eating habits, while placing a yoga mat in a visible location can prompt daily exercise (Hagger, 2019). Similarly, creating a calm, designated space for meditation can reinforce the habit of mindfulness (Carden & Wood, 2018).
The concept of "habit architecture" proposes that habits can be outsourced to the environment, allowing individuals to rely on cues embedded in their surroundings rather than continuous conscious effort (Verplanken & Orbell, 2022). For instance, rearranging furniture to make exercise easier can reduce the friction of starting a workout.
Regularly refreshing and reinforcing these cues helps prevent relapse and maintain long-term behaviour change.

Behavioural interventions and techniques

According to the nudge theory, techniques like nudges (subtle prompts) and visual reminders are highly effective for shaping behaviour (Hagger, 2019). Nudges subtly alter the environment to guide people toward desirable actions. For example, placing water bottles at eye level in the fridge can encourage regular hydration without requiring much thought. Such interventions are particularly useful for individuals who benefit from environmental prompts rather than internal motivation.
Another powerful technique is the use of implementation intentions models which involves making specific plans that tie an action to a cue (e.g., "When I see my running shoes, I will go for a jog"). Repeating these actions in the same context strengthens the automatic link between the cue and the behaviour, solidifying the habit over time (Verplanken & Orbell, 2022).
Case studies of environmental changes provide valuable insights into successful strategies (Gardner et al., 2014). Examples like using reminder apps or placing motivational notes on mirrors illustrate how simple environmental cues can make a significant impact on habit formation and maintenance.

Technology and environmental cues

Technology plays a growing role in habit formation through the use of apps, smart devices, and digital reminders that offer timely prompts and track progress (Zhu et al., 2024).
While technology adds convenience and scalability, it’s important to balance its use with traditional methods to avoid over-reliance and potential distractions. For instance, relying solely on smartphone reminders might undermine the habit’s development when technology is unavailable.
Emerging technologies like AI and wearable devices are making habit formation more personalised by providing tailored feedback and prompts that suit individual needs (Hagger, 2019). These tools can improve the effectiveness of habit-change strategies, but their integration with personal routines should be carefully managed to avoid creating new dependencies.

Case study of Alex

Consider the case study of Alex from earlier.

A potential strategy for intervention is for Alex to design her environment in a way that can facilitate habit formation. To make the new habit of taking regular breaks more effective, Alex needs to integrate environmental cues that act as prompts, such as:

Visual Reminders: Place a sticky note on the computer monitor or set a prominent visual cue in the study space to remind Alex to take breaks. A visible reminder acts as a direct prompt to start the stretching routine.
Scheduled Alerts: Use technology to set hourly reminders or alarms on the computer or smartphone. These scheduled cues will prompt Alex to take a break at the intended time.
Dedicated Space: Create a small, designated area near the desk for stretching exercises. Having a specific spot for the routine makes it easier to perform the behaviour when the cue occurs.
Social Cues: Enlist the help of colleagues to establish a group stretching routine or accountability system. Social interactions can act as additional cues and reinforce the habit.

Challenges and limitations

While environmental cues are powerful tools for shaping and maintaining habits, their effectiveness in real-world settings faces several challenges. These challenges include over-reliance on cues, changes in environment, individual differences in cue sensitivity, and difficulties in maintaining cues over the long term.

Over-reliance on cues

A significant challenge is the potential over-dependence on specific environmental cues, making it difficult to maintain habits when those cues are absent. Gardner et al. (2016) found that behaviours triggered by external cues often falter when the cues are disrupted. For example, a person who uses their home workout space as a cue to exercise may struggle to maintain the routine while travelling. To mitigate this, individuals could incorporate a variety of cues, both physical and social, or focus on internal motivation to reduce reliance on a single trigger.

Environmental changes and cue adaptation

Changes in environment, such as relocating or adjusting daily routines, can disrupt established habit loops. Neal et al. (2012) highlighted that deeply ingrained habits are primarily driven by contextual cues rather than conscious goals. When these cues change, such as when someone moves to a new home, the automatic link between cue and behaviour is often broken. To sustain habits across changing contexts, individuals could practice adapting or recreating cues in new environments, such as setting up a new workspace or adopting new triggers that fit the context.

Individual differences in cue sensitivity

Another challenge is the variability in how individuals respond to environmental cues. Gardner et al. (2012) found that personality traits and cue sensitivity influence how effectively cues trigger behaviours. Extroverts, for example, may thrive on social cues, such as group exercise, while introverts may respond better to physical or temporal cues, such as a structured routine or a designated space for specific activities. Tailoring cue-based strategies to individual preferences can help increase the likelihood of success, as a one-size-fits-all approach may be ineffective.

Maintaining cues over the long term

Sustaining behaviour change requires reinforcing cues over time. Harvey et al. (2022) noted that environmental cues lose their effectiveness unless regularly updated or refreshed. A reminder to meditate might initially be effective, but it can become less noticeable as it blends into the background. To overcome this, individuals could periodically adjust or introduce new cues to keep behaviours fresh and engaging, ensuring long-term habit maintenance.

Knowledge check!

Conclusion

Environmental cues play a fundamental role in the formation and maintenance of habits by providing the triggers that lead to automatic behaviours. Habits are formed through the repetition of specific actions in response to cues, reinforcing the neural pathways that support these behaviours. The process, known as the habit loop, involves a cue, routine, and reward, and over time, these responses become automatic, as seen in Alex’s case. Cues such as physical objects, social interactions, and time-based routines facilitate the development of habits by embedding them into daily life without the need for constant conscious effort. These cues can also be powerful tools for behaviour change, as they reduce the reliance on willpower by creating environments that encourage desired actions. However, challenges such as over-reliance on specific cues, disruptions caused by environmental changes, and individual differences in cue sensitivity can affect the success of habit formation. Despite these limitations, understanding how environmental cues work allows us to design more effective interventions that promote long-term behaviour change and personal growth, helping individuals to sustain positive habits over time.

References

Amaya, K. A., & Smith, K. S. (2018). Neurobiology of habit formation. Current Opinion in Behavioral Sciences, 20, 145–152. https://doi.org/10.1016/j.cobeha.2018.01.003

Carden, L., & Wood, W. (2018). Habit formation and change. Current Opinion in Behavioral Sciences, 20, 117–122. https://doi.org/10.1016/j.cobeha.2017.12.009

Chen, W., Chan, T. W., Wong, L. H., Looi, C. K., Liao, C. C. Y., Cheng, H. N. H., Wong, S. L., Mason, J., So, H.-J., Murthy, S., Gu, X., & Pi, Z. (2020). Idc theory: Habit and the habit loop. Research and Practice in Technology Enhanced Learning, 15(1). https://doi.org/10.1186/s41039-020-00127-7

Diefenbacher, S., Lally, P., & Gardner, B. (2023). Habit formation in context: Context-specific and context-free measures for tracking fruit consumption habit formation and behaviour. British Journal of Health Psychology, 28(2), 499–512. https://doi.org/10.1111/bjhp.12637

Fritz, H., Hu, Y.-L., Gahman, K., Almacen, C., & Ottolini, J. (2020). Intervention to modify habits: A scoping review. OTJR: Occupational Therapy Journal of Research, 40(2), 99–112. https://doi.org/10.1177/1539449219876877

Gardner, B., Arden, M. A., Brown, D., Eves, F. F., Green, J., Hamilton, K., Hankonen, N., Inauen, J., Keller, J., Kwasnicka, D., Labudek, S., Marien, H., Masaryk, R., McCleary, N., Mullan, B. A., Neter, E., Orbell, S., Potthoff, S., & Lally, P. (2023). Developing habit-based health behaviour change interventions: Twenty-one questions to guide future research. Psychology & Health, 38(4), 518–540. https://doi.org/10.1080/08870446.2021.2003362

Gardner, B., & Lally, P. (2018). Modelling habit formation and its determinants. In B. Verplanken (Ed.), The psychology of habit : Theory, mechanisms, change, and contexts (pp. 207–229). Springer International Publishing AG. https://doi.org/10.1007/978-3-319-97529-0

Gardner, B., Lally, P., & Wardle, J. (2012). Making health habitual: The psychology of ‘habit-formation’ and general practice. British Journal of General Practice, 62(605), 664–666. https://doi.org/10.3399/bjgp12x659466

Gardner, B., Phillips, L. A., & Judah, G. (2016). Habitual instigation and habitual execution: Definition, measurement, and effects on behaviour frequency. British Journal of Health Psychology, 21(3), 613–630. https://doi.org/10.1111/bjhp.12189

Gardner, B., Sheals, K., Wardle, J., & McGowan, L. (2014). Putting habit into practice, and practice into habit: A process evaluation and exploration of the acceptability of a habit-based dietary behaviour change intervention. International Journal of Behavioral Nutrition and Physical Activity, 11(1). https://doi.org/10.1186/s12966-014-0135-7

Hagger, M. S. (2019). Habit and physical activity: Theoretical advances, practical implications, and agenda for future research. Psychology of Sport and Exercise, 42, 118–129. https://doi.org/10.1016/j.psychsport.2018.12.007

Hagger, M. S., Hamilton, K., Phipps, D. J., Protogerou, C., Zhang, C.-Q., Girelli, L., Mallia, L., & Lucidi, F. (2023). Effects of habit and intention on behavior: Meta-analysis and test of key moderators. Motivation Science, 9(2), 73–94. https://doi.org/10.1037/mot0000294

Harvey, A. G., Callaway, C. A., Zieve, G. G., Gumport, N. B., & Armstrong, C. C. (2022). Applying the science of habit formation to evidence-based psychological treatments for mental illness. Perspectives on Psychological Science, 17(2), 572–589. https://doi.org/10.1177/1745691621995752

Judah, G., Gardner, B., & Aunger, R. (2013). Forming a flossing habit: An exploratory study of the psychological determinants of habit formation. British Journal of Health Psychology, 18(2), 338–353. https://doi.org/10.1111/j.2044-8287.2012.02086.x

Lally, P., & Gardner, B. (2013). Promoting habit formation. Health Psychology Review, 7, S137–S158. https://doi.org/10.1080/17437199.2011.603640

Lally, P., Van Jaarsveld, C. H. M., Potts, H. W. W., & Wardle, J. (2010). How are habits formed: Modelling habit formation in the real world. European Journal of Social Psychology, 40(6), 998–1009. https://doi.org/10.1002/ejsp.674

Lerner, T. N. (2020). Interfacing behavioral and neural circuit models for habit formation. Journal of Neuroscience Research, 98(6), 1031–1045. https://doi.org/10.1002/jnr.24581

Linder, N., Giusti, M., Samuelsson, K., & Barthel, S. (2022). Pro-environmental habits: An underexplored research agenda in sustainability science. Ambio, 51(3), 546–556. https://doi.org/10.1007/s13280-021-01619-6

Marteau, T. M., Fletcher, P. C., Hollands, G. J., & Munafò, M. R. (2020). Changing behavior by changing environments. In M. S. Hagger, L. D. Cameron, K. Hamilton, N. Hankonen, & T. Lintunen (Eds.), The handbook of behavior change (pp. 193–207). Cambridge University Press. https://doi.org/10.1017/9781108677318.014

Neal, D. T., Wood, W., Labrecque, J. S., & Lally, P. (2012). How do habits guide behavior? Perceived and actual triggers of habits in daily life. Journal of Experimental Social Psychology, 48(2), 492–498. https://doi.org/10.1016/j.jesp.2011.10.011

Smith, K. S., & Graybiel, A. M. (2016). Habit formation. Dialogues in Clinical Neuroscience, 18(1), 33–43. https://doi.org/10.31887/dcns.2016.18.1/ksmith

Stawarz, K., Gardner, B., Cox, A., & Blandford, A. (2020). What influences the selection of contextual cues when starting a new routine behaviour? An exploratory study. BMC Psychology, 8(1), 29. https://doi.org/10.1186/s40359-020-0394-9

Verplanken, B., & Orbell, S. (2022). Attitudes, habits, and behavior change. Annual Review of Psychology, 73(1), 327–352. https://doi.org/10.1146/annurev-psych-020821-011744

Wood, W., & Rünger, D. (2016). Psychology of habit. Annual Review of Psychology, 67(1), 289–314. https://doi.org/10.1146/annurev-psych-122414-033417

Zhu, Y., Long, Y., Wang, H., Lee, K. P., Zhang, L., & Wang, S. J. (2024). Digital behavior change intervention designs for habit formation: Systematic review. Journal of Medical Internet Research, 26, e54375. https://doi.org/10.2196/54375

External links

The science of habit (healthline.com)
Habit loop (choicehacking.com)