Publications by authors named "Sarah Masterton"

Cognitive Bias Modification (CBM) is hypothesised to reduce unhealthy food preference and consumption through the completion of computerised cognitive training tasks. While there is evidence to suggest that two popular CBM paradigms (Inhibitory Control Training (ICT) and Evaluative Conditioning (EC)) can have a positive influence on food-related outcomes, issues (and inconsistencies) related to task standardisation and control group design make it difficult to evaluate their standalone efficacy. In a pre-registered laboratory study using a mixed experimental design, our aim was to directly compare a single session of ICT and EC on implicit preference, explicit choice and ad-libitum food intake, while ensuring appropriate active control groups were utilised for each training type (in addition to a passive control group).

View Article and Find Full Text PDF

Objectives: While the assessment of actual food intake is essential in the evaluation of behaviour change interventions for weight-loss, it may not always be feasible to collect this information within traditional experimental paradigms. For this reason, measures of food preference (such as measures of food value and choice) are often used as more accessible alternatives. However, the predictive validity of these measures (in relation to subsequent food consumption) has not yet been studied.

View Article and Find Full Text PDF

Cognitive Bias Modification (CBM) paradigms have previously been applied to target appetite (craving, hunger) and food intake, and are hypothesised to reduce unhealthy food consumption. However, inconsistencies in relation to training outcomes raise questions regarding the efficacy of CBM as a standalone intervention. Furthermore, individual level factors (such as belief in the intervention efficacy) may influence expectations of behaviour change following training.

View Article and Find Full Text PDF
Article Synopsis
  • Overconsumption of high-energy foods is linked to obesity rates, prompting a study on interventions in worksite cafeterias to decrease energy intake by changing food options and portion sizes.
  • The study utilized a stepped-wedge randomised controlled trial design in 19 cafeterias, where one group replaced high-energy foods with lower-energy options and another group reduced portions of high-energy foods over 25 weeks.
  • Results showed a significant reduction in energy purchased from intervention categories, with a decrease of 4.8% during the first phase and 11.5% during the combined intervention phase, indicating that these changes can effectively lower energy intake.
View Article and Find Full Text PDF

There is considerable interest in Cognitive Bias Modification (CBM) as a potential treatment for overweight/obesity. Inhibitory Control Training (ICT: also known as motor response training) and Evaluative Conditioning (EC) are two popular paradigms which rely on associatively learned responses (unhealthy food - > inhibition, or unhealthy food- > negative stimulus, respectively) through repeated cue-response contingencies. Both ICT and EC have demonstrated some effectiveness for reducing food intake, value and/or choice, when administered in the laboratory and online.

View Article and Find Full Text PDF