Collaborative Action provides a novel approach to modeling interaction among users and machines and IT-mediated collaboration among people to solve problems. CoAct extends the notions of affordance and moves away from idiosyncratic, subjective mental models of the world to the notion that actors with similar capacities to act can potentially discern similar action possibilities in the world. It...

In this paper, I present the concept of "MegaAffordance Objects" (MAOs). An MAO is a common object with a primitive form factor that exhibits multiple affordances and can perform numerous improvised functions in addition to its original one. In order to broaden the reach of Tangible User Interfaces (TUIs) and create compelling everyday applications, I propose applying computational power to Meg...

Implementation of adequate conversational structures is a key issue in developing successful interactive user interfaces. A way of testing the adequacy of the structures is to prove the correct orientation of each communicative action towards a preceding action. We refer to this orientation leading to a certain response as the affordance of the communicative action. In this paper we present a c...

A wealth of behavioral data has shown that the visual properties of objects automatically potentiate motor actions linked with them, but how deeply are these affordances embedded in visual processing? In the study reported here, we used electrophysiological measures to examine the time course of affordance resulting from the leftward or rightward orientation of the handles of common objects. Pa...

This paper investigates an approach to human-computer interaction – actability theory – that emphasises human-via-computer-to-human interaction. This social action approach to HCI is confronted with affordance theory by Gibson; an ecological theory of perception. The notion of affordance is compared and related to actability. Different IT usage situations described in actability theory are crit...

The interaction of biological agents within the real world is based on their abilities and the affordances of the environment. By contrast, the classical view of perception considers only sensory features, as do most object recognition models. Only a few models make use of the information provided by the integration of sensory information as well as possible or executed actions. Neither the rel...

10 Abstract Performing any behavior requires perceiving 11 affordances—whether and how that behavior can be per12 formed. Perception of affordances exhibits action scaling— 13 choices about when to transition between two different modes 14 of behavior reflect the fit between action capabilities and en15 vironmental properties. The boundary between distances that 16 are perceived to be reachable...

This study draws on tourism literature and current examples to propose that the emergence of Travel Live Streaming (TLS) provides new affordances for live streamers, viewers, sponsors. Despite its increasing popularity opportunities communication marketing in tourism, TLS has received limited attention academic literature. The aim this paper is use theory understand some key features benefits T...

In this chapter, we discuss the distribution and lexical properties of common varieties of negative polarity items (NPIs) and positive polarity items (PPIs). We establish first that NPIs can be licensed in negative, downward entailing, and nonveridical environments. Then we examine if the scalarity approach (originating in Kadmon and Landman 1993) can handle the attested NPI distribution and em...

Reading text from computer screens is better when text is printed in dark letters on light background (positive polarity) than when it is printed in light letters on dark background (negative polarity). An experiment is presented that tests whether this positive polarity advantage is due to the fact that overall display luminance is typically higher for positive than for negative polarity displ...