Uncovering the cognitive mechanisms underlying the gaze cueing effect.

The gaze cueing effect is the tendency for people to respond faster to targets appearing at locations gazed at by others, compared with locations gazed away from by others. The effect is robust, widely studied, and is an influential finding within social cognition. Formal evidence accumulation models provide the dominant theoretical account of the cognitive processes underlying speeded decision-making, but they have rarely been applied to social cognition research. In this study, using a combination of individual-level and hierarchical computational modelling techniques, we applied evidence accumulation models to gaze cueing data (three data sets total, N = 171, 139,001 trials) for the first time to assess the relative capacity that an attentional orienting mechanism and information processing mechanisms have for explaining the gaze cueing effect. We found that most participants were best described by the attentional orienting mechanism, such that response times were slower at gazed away from locations because they had to reorient to the target before they could process the cue. However, we found evidence for individual differences, whereby the models suggested that some gaze cueing effects were driven by a short allocation of information processing resources to the gazed at location, allowing for a brief period where orienting and processing could occur in parallel. There was exceptionally little evidence to suggest any sustained reallocation of information processing resources neither at the group nor individual level. We discuss how this individual variability might represent credible individual differences in the cognitive mechanisms that subserve behaviourally observed gaze cueing effects.

The impact of cognitive resource constraints on goal prioritization.

Many decisions we face daily entail deliberation about how to coordinate resources shared between multiple, competing goals. When time permits, people appear to approach these goal prioritization problems by analytically considering all goal-relevant information to arrive at a prioritization decision. However, it is not yet clear if this normative strategy extends to situations characterized by resource constraints such as when deliberation time is scarce or cognitive load is high. We evaluated the questions of how limited deliberation time and cognitive load affect goal prioritization decisions across a series of experiments using a gamified experimental task, which required participants to make a series of interdependent goal prioritization decisions. We fit several candidate models to experimental data to identify decision strategy adaptations at the individual subject-level. Results indicated that participants tended to opt for a simple heuristic strategy when cognitive resources were constrained rather than making a general tradeoff between speed and accuracy (e.g., the type of tradeoff that would be predicted by evidence accumulation models). The most common heuristic strategy involved disproportionately weighing information about goal deadlines compared to other goal-relevant information such as the goal's difficulty and the goal's subjective value.

Cardiorespiratory Fitness and Muscular Strength Do Not Predict Social Cognitive Capacity in Older Age.

OBJECTIVES: Social cognitive function often declines in older age but the mechanisms underlying these declines are not completely clear. Cardiorespiratory fitness (CRF) and muscular strength are positively associated with broader cognitive function in older adults, yet surprisingly, no study has examined whether a similar relationship exists between CRF or muscular strength and social cognition in older age. METHODS: We assessed whether higher CRF and muscular strength were associated with enhanced social cognitive function in a sample of fifty older adults (Mage = 70.08, standard deviation = 3.93). Participants completed a gold-standard cardiopulmonary exercise test to assess CRF, an isometric handgrip strength test to index muscular strength, and validated measures of social cognition to index emotion perception and theory of mind (ToM). RESULTS: The results showed that CRF and muscular strength did not explain any unique variance in older adults' social cognitive performance. Bayesian analyses confirmed that the evidence for the null hypothesis was moderate for all tested relationships, except for the relationship between CRF and cognitive ToM where the evidence for the null was anecdotal. DISCUSSION: This study has provided the first evidence to suggest that CRF and muscular strength-two important modifiable lifestyle factors-are not associated with social cognition in healthy older adults. However, replication studies are now needed to cross-validate these findings and to clarify whether any moderating variables may be important for understanding the relationship between fitness and social cognition in older age.

Enhancing ecological validity of gaze-cueing stimuli is associated with increased gaze following for older but not younger adults.

Gaze following is a core social-cognitive capacity. Previous work has shown that older adults have reduced gaze following relative to younger adults. However, all previous studies have exclusively used stimuli with low ecological validity, leaving room for alternative explanations for the observed age effects. Motivational models suggest that, relative to younger adults, older adults expend cognitive resources more selectively, such that they are less motivated to engage in tasks that are not meaningful or personally relevant. This may explain why their gaze following is reduced when stimuli are low in ecological validity. An expertise-based account suggests that older adults will have enhanced gaze following owing to their greater experience with gaze cues but that this enhancement may only emerge when stimuli are naturalistic and match those that they have more experience with. In the present study, younger (N = 63) and older adults (N = 68) completed a standard gaze-cueing task (static images) and a gaze-cueing task with enhanced ecological validity (videos of shifting gaze). In contrast to past research, both groups showed equivalent gaze following. Notably, in line with motivational model theorizing and experience-based accounts, ecological validity was associated with enhanced gaze following for older but not younger adults. These findings highlight the importance of considering stimulus ecological validity in social-cognitive aging research and provide information regarding the specific types of gaze cues that may be most effective in producing the cognitive and perceptual benefits associated with gaze cues for older adults. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

How Does Aging Affect Social Attention? A Test of Competing Theories Using Multilevel Meta-Analysis.

OBJECTIVES: The present study provides a meta-analytic assessment of how gaze-cued attention-a core social-cognitive process-is influenced by normal adult aging. METHODS: A multilevel meta-analysis of standardized mean changes was conducted on gaze-cueing effects. Age effects were quantified as standardized mean differences in gaze-cueing effect sizes between young and older adult samples. RESULTS: We identified 82 gaze-cueing effects (k = 26, N = 919 participants). Of these, 37 were associated with young adults (k = 12, n = 438) and 45 with older adults (k = 14, n = 481). Relative to younger adults, older adults had a reduced gaze-cueing effect overall, g = -0.59, with this age effect greater when the cues were predictive, g = -3.24, rather than nonpredictive, g = -0.78. DISCUSSION: These results provide the clearest evidence to date that adult aging is associated with a reduction in gaze-cued attention. The results also speak to potential mechanisms of this age effect. In line with cognitive decline models of aging, it was demonstrated that when gaze cues were predictive, only younger adults seem to benefit, suggesting that older adults exhibit a particularly reduced capacity to use gaze cues volitionally.