The genus Paraquilegia J.R.Drumm. & Hutch. is reviewed. Six taxa are described, typified and illustrated. A key given for the species related genera.

Positron emission tomography was used to investigate whether the motor-iconic basis of certain forms in American Sign Language (ASL) partially alters the neural systems engaged during lexical retrieval. Most ASL nouns denoting tools and ASL verbs referring to tool-based actions are produced with a handshape representing the human hand holding a tool and with an iconic movement depicting canonic...

Studies of embodied cognition have shown that comprehenders process iconic word pairs (attic-basement) more quickly than reverse-iconic pairs (basement-attic) when the pairs are presented to them in a vertical spatial arrangement. This effect disappears in a horizontal spatial arrangement. This has been claimed to show that comprehenders perceptually simulate these word pairs. A complementary e...

Human locomotion is a fundamental class of events, and manners of locomotion (e.g., how the limbs are used to achieve a change of location) are commonly encoded in language and gesture. To our knowledge, there is no openly accessible database containing normed human locomotion stimuli. Therefore, we introduce the GestuRe and ACtion Exemplar (GRACE) video database, which contains 676 videos of a...

Making Entity-Relationship diagrams easier to understand for novices has been a topic of previous research. This study provides experimental evidence that suggests using small representative graphics (iconic graphics) to replace standard entity boxes in an ER diagram can have a positive effect on domain understanding for novice users. Cognitive Load Theory and the Cognitive Theory of Multimedia...

Iconic memory has often been likened to a sensory store whose contents drain away rapidly as soon as the inducing stimulus is turned off. Instances of short-lived visible persistence have been explained in terms of the decaying contents of iconic store. A fundamental requirement of this storage model is that strength of persistence should be a decreasing function of time elapsed since the cessa...

Iconic approaches Fisher (2) to object recognition rely upon the direct comparison between an unknown input image with of characteristic views of images of a target subject contained in an icon database. Hence, this approach to recognition is distinguished by making comparisons in icon-space as opposed to making comparisons upon a more condensed symbolic representation of the information contai...

OBJECTIVE An experiment investigated the efficacy of auditory icons as warning signals in an aviation context. BACKGROUND Iconic signals, such as a cough to signal dangerous levels of carbon monoxide, convey information about the nature of an incident and alert the operator that there is a problem, whereas signals that are arbitrarily associated with a critical incident provide relatively les...

Human evolution unfolded through a rather distinctive, dynamically constructed ecological niche. The human niche is not only generally terrestrial in habitat, while being flexibly and extensively heterotrophic in food-web connections. It is also defined by semiotically structured and structuring embodied cognitive interfaces, connecting the individual organism with the wider environment. The em...

In this paper, we present a hybrid grammar formalism designed to learn structured models of natural iconic gesture performances that allow for compressed representation and robust recognition. We analyze a dataset of iconic gestures and show how the proposed Featurebased Stochastic Context-Free Grammar (FSCFG) can generalize over both structural and feature-based variations among different gest...