Prior to the twentieth century, theories of knowledge were inherently perceptual. Since then, developments in logic, statis- tics, and programming languages have inspired amodal theories that rest on principles fundamentally different from those underlying perception. In addition, perceptual approaches have become widely viewed as untenable because they are assumed to implement record- ing systems, not conceptual systems. A perceptual theory of knowledge is developed here in the context of current cognitive science and neuroscience. During perceptual experience, association areas in the (...) brain capture bottom-up patterns of activation in sensory-motor areas. Later, in a top-down manner, association areas partially reactivate sensory-motor areas to implement perceptual symbols. The stor- age and reactivation of perceptual symbols operates at the level of perceptual components – not at the level of holistic perceptual expe- riences. Through the use of selective attention, schematic representations of perceptual components are extracted from experience and stored in memory (e.g., individual memories of green, purr, hot). As memories of the same component become organized around a com- mon frame, they implement a simulator that produces limitless simulations of the component (e.g., simulations of purr). Not only do such simulators develop for aspects of sensory experience, they also develop for aspects of proprioception (e.g., lift, run) and introspec- tion (e.g., compare, memory, happy, hungry). Once established, these simulators implement a basic conceptual system that represents types, supports categorization, and produces categorical inferences. These simulators further support productivity, propositions, and ab- stract concepts, thereby implementing a fully functional conceptual system. Productivity results from integrating simulators combinato- rially and recursively to produce complex simulations. Propositions result from binding simulators to perceived individuals to represent type-token relations. Abstract concepts are grounded in complex simulations of combined physical and introspective events. Thus, a per- ceptual theory of knowledge can implement a fully functional conceptual system while avoiding problems associated with amodal sym- bol systems. Implications for cognition, neuroscience, evolution, development, and artificial intelligence are explored. (shrink)

Viewing emotion from an evolutionary perspective, researchers have argued that simple responses to affective stimuli can be triggered without mediation of cognitive processes. Indeed, findings suggest that positively and negatively valenced stimuli trigger approach and avoidance movements automatically. However, affective stimulus–response compatibility phenomena share so many central characteristics with nonaffective stimulus–response compatibility phenomena that one may doubt whether the underlying mechanisms differ. We suggest an “affectively enriched” version of the theory of event coding (TEC) that is able to account for (...) both affective and nonaffective compatibility, and that can account for the observation that both types of compatibility seem to be modulated by goals and intentions. Predictions from the model are tested in an experiment where participants carried out approach and avoidance responses to either the valence or the orientation of emotionally charged pictures. Under affective instruction the positive-approach/negative-avoid mapping yielded faster responses than the positive-avoid/negative-approach mapping, but no such effect was observed under spatial instruction. Conversely, spatial compatibility effects were obtained under spatial, but not under affective instruction. We conclude that affective and nonaffective compatibility effects reflect the same mechanism. (shrink)

Past research has established that people can strategically enhance or override impulsive emotional behaviour with implementation intentions (Eder, Rothermund, & Proctor, 2010). However, it is unclear whether emotional action tendencies change by intentional processes or by habit formation processes due to repeated enactment of the intention (or both). The present study shows that forming implementation intentions is sufficient to modulate emotional action tendencies. Participants received instructions about how to respond to positive and negative stimuli on evaluation trials but no such (...) trials were actually presented. Results showed that merely intending to approach and avoid affective stimuli influenced emotional action tendencies in a modified affective Simon task in which affective valence was irrelevant. An affective Simon effect (i.e., faster reactions when the valence of the stimulus corresponded with the valence of the movement) was observed when participants intended evaluations with affectively congruent responses (i.e., positive–approach, negative–avoid); in contrast, the effect was reversed in direction when participants planned evaluations with incongruent responses (i.e., positive–avoid, negative–approach). Thus, implementation intentions can regulate implicit emotional responses even in the absence of possible habit formation processes. Implications for dual-system accounts of emotion regulation are discussed. (shrink)

A common coding account of bidirectional evaluation–behaviour interactions proposes that evaluative attributes of stimuli and responses are coded in a common representational format. This assumption was tested in two experiments that required evaluations of positive and negative stimuli during the generation of a positively or negatively charged motor response. The results of both experiments revealed a reduced evaluative sensitivity (d′) towards response-compatible stimulus valences. This action–valence blindness supports the notion of a common valence coding in action and evaluation.