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Languages exhibit a tremendous amount of variation in how they organise and order morphemes within words; however, regularities are also found. For example, gender and number inflectional morphology tend to appear together within a single affix, and when they appear in two separate affixes, gender marking tends to be placed closer to the stem than number. Formal theories of gender and number have been designed (in part) to explain these tendencies. However, determining whether the abstract representations hypothesised by these theories indeed drive the patterns we find cross-linguistically is difficult, if not impossible, based on the natural language data alone. In this study we use an artificial language learning paradigm to test whether the inferences learners make about the order of gender and number affixes—in the absence of any explicit information in the input—accord with formal theories of how they are represented. We test two different populations, English and Italian speakers, with substantially differ- ent gender systems in their first language. Our results suggest a clear preference for placing gender closest to the noun across these populations, across different types of gender systems, and across prefixing and suffixing morphology. These results expand the range of behavioural evidence for the role of cognitive representations in determining morpheme order.


CogSci 2023

Speakers&#39; cognitive representations of gender and number morphology shape cross-linguistic tendencies in morpheme order

Speakers' cognitive representations of gender and number morphology shape cross-linguistic tendencies in morpheme order

technical paper

The 45th Annual Meeting of the Cognitive Science Society will take place in Sydney, Australia as a modified hybrid conference. Presentations from the main-session room will be live-streamed every day for all events. This will include all invited talks and award sessions. Recordings of all CogSci 2023 sessions will be made available for on-demand viewing after the conference.<br>
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The 45th Annual Meeting of the Cognitive Science Society presents the latest research across cognitive science and highlights the theme of Cognition in Context.

When faced with uncertainty, human observers maximize performance by integrating sensory information with learned task-relevant regularities. Does this behavior similarly occur in social settings? Here, we used a probabilistic decision-making task to explore how human behavior in an intergroup context is influenced by readily available but task-irrelevant social information (in the form of group membership) versus task-relevant reward information that could be learned over time. Across two experiments, we show that participants learned and utilized task-relevant regularities to inform their choices. We also show that human observers are not universally biased towards utilizing social information in all settings––participants learned to disregard social information when not relevant to the task at hand. However, learning about the utility of social information had a long-term influence on observers’ ability to subsequently learn and utilize available sources of information. Real-world intergroup contexts typically encompass situations and stimuli that have been previously experienced by the observer. Our findings highlight the powerful influence of learning in such contexts.


Learning and Information Use in an Intergroup Context

Research on social motor coordination (SMC), defined as the intentional or unintentional coordination of movement between individuals in a social setting, has been linked to greater feelings of rapport and social connectedness. Here, we further investigated this relationship using a silent disco paradigm where groups of individuals listened to either the same music (the same track at the same time) or different music (different tracks at any one time). Visual information was also manipulated by having groups listened and danced with curtains separating them closed (2 minutes) or open (10 minutes). Head movements were recorded with a wireless motion tracking system, attached to the silent disco headphones. Rapport and social connectedness measures were obtained using questionnaires completed after participation in the silent disco. Results showed that groups that listened to the same music exhibited a greater degree of SMC than groups that listened to different music. Greater degrees of SMC were also observed when group members were able to see one another. Finally, greater SMC was associated with increased self-other overlap and increased perceived quality of interaction.


Social connection on the dance floor: Movement coordination in small group silent disco leads to greater self-other overlap

Helping is an inherently cooperative behavior, but the cognitive mechanisms underlying this behavior remain relatively underexplored. In this paper, we introduce a novel gamified paradigm for understanding a variety of cognitive behaviors associated with helping. Principals are assigned secret goals in a block-based grid (e.g., move all blue blocks to room C), and helpers can either pass their turn or make a move that could help the principal. We show that principals make useful and pragmatic first moves and helpers accumulate evidence over time before initiating a helpful move. We also introduce a preliminary set of computational models based on recursive pragmatic inference and utility maximization that attempt to account for these behavioral findings.


Help me help you: A computational model for goal inference and action planning

Solving problems with others not only reduces the time required to complete a challenge but may also enable the discovery of novel strategies that qualitatively change how a problem is approached. At the dyadic level, the laboratory-based ‘shepherding task’ demonstrated that, when tasked to contain evasive agents to a centralized location, some participants discover a non-obvious but optimal strategy to solve the task. This paper quantified the interactions between participants engaged in the task using Multidimensional Cross-Recurrence Quantification Analysis (MdCRQA), applied to each participant’s gaze and hand movements. The results demonstrated that strategy discoverers exhibited greater amounts of incidental coupling than non-discoverers prior to discovery. Once discovered, the strategy reduced the strength of coupling between participants, indicating that the strategy also reduced coordination demands. Future work will investigate whether differences in problem-solving can be attributable to differences in the perceptual features participants use which scaffold the discovery of task-optimal solutions.


Incidental Coupling of Perceptual-Motor Behaviors Associated with Solution Insight during Physical Collaborative Problem-Solving

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Multimodal binding as mereological co-constituency

Spatial reasoning is an inherent aspectof everyday life. For example, spatial reasoning supports young children playing with blocks, older children learning about positioning on a sports field,and adults navigatingwhere they need to go. Spatial reasoning is also a critical aspect of STEM (science, technology, engineering,mathematics,e.g., Wai, Lubinski, & Benbow, 2009). For example, chemists imagine molecules rotating to compare structure, and physicistsreason aboutthe influence of invisible forces on magnetic fields. As can be observed in the examples above, there are a wide range of spatial tasks. Spatial reasoning in real-world contexts can be complex and multifaceted(Atit et al., 2020). How individuals engage in spatial reasoning is highly context-specific, influenced by task demands, novelty of task, and prior knowledge (Uttal & Cohen, 2012). Unfortunately, most of what we know about spatial reasoning is driven by psychological research using psychometric tasks designed to isolate specific spatial skills,independent of context (for review see Atitet al.,2020). Without examining variability across contexts, models of spatial reasoning are incomplete and limited in scope (Resnick & Stieff, in press). In this symposium, we willexplore different contexts in which spatial reasoning is learned. In doing so, we will raise theoretical questions around universal aspects of spatial cognition as well as practical considerations, such as how and when spatial learning should be included in education. This work is important because spatial reasoning can be learned and improved (Uttal et al., 2013), and improvements in spatial reasoning causally support improvements in STEM (e.g., Hawes et al., 2022; Sorby, 2009).Although all four talks center on the role of context in spatial learning, the presenters are drawn from different disciplines, methodologies, and perspectives.Mary Hegartywillbegin by characterizingthe disconnect between psychological research in spatial reasoning and the spatial reasoning involved in complex STEM tasks. The next three talks unpack specific everyday STEM contexts where spatial reasoningis learned. Ilyse Resnick will present work in the learning sciences on shared book reading. David Uttal, a cognitive and developmental psychologist, will present on geographic information systems. Tom Lowrie, a mathematics education researcher, will present on the importance of embedded authentic tasks in spatial and STEM learning.

Speakers' cognitive representations of gender and number morphology shape cross-linguistic tendencies in morpheme order

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Speakers' cognitive representations of gender and number morphology shape cross-linguistic tendencies in morpheme order

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Learning and Information Use in an Intergroup Context

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