Individuals frequently make use of the body and environment when engaged in a cognitive task. For example, individuals will often spontaneously physically rotate when faced with rotated objects, such as an array of words, to putatively offload the performance costs associated with stimulus rotation. We looked to further examine this idea by independently manipulating the costs associated with both word rotation and array frame rotation. Surprisingly, we found that individuals’ patterns of spontaneous physical rotations did not follow patterns of performance (...) costs or benefits associated with being physically rotated, findings difficult to reconcile with existing theories of strategy selection involving external resources. Individuals’ subjective ratings of perceived benefits, rather, provided an excellent match to the patterns of physical rotations, suggesting that the critical variable when deciding on-the-fly whether to incorporate an external resource is the participant's metacognitive beliefs regarding expected performance or the effort required for each approach. Implications for metacognition's future in theories of cognitive offloading are discussed. (shrink)

Recent debates on mental extension and distributed cognition have taught us that environmental resources play an important and often indispensable role in supporting cognitive capacities. In order to clarify how interactions between the mind –particularly memory– and the world take place, this paper presents the “selection problem” and the “endorsement problem” as structural problems arising from such interactions in cases of mental scaffolding. On the one hand, the selection problem arises each time an agent is confronted with a cognitive problem, (...) since she has to choose whether to solve it internally or externally. How does she choose? On the other hand, when confronted with the internally or externally retrieved solution to a cognitive task, the subject has to decide whether to endorse the information. How does the subject decide whether to endorse it or not? The last section proposes a solution to each problem in terms of metamemory and metacognitive feelings. Metamemory evaluates memory each time the subject is confronted with a memory task and elicits either a positive or negative metacognitive feeling that guides the decision. (shrink)