Eye-head coordination was measured in patients with Parkinson's disease as they made horizontal gaze shifts in response to predictable and unpredictable target steps and to targets moving smoothly with either constant or sinusoidally varying velocity. Patients preferred not to move their heads for both large and small amplitude gaze shifts. Both eye and head movement reaction times were prolong...

Motion correction algorithms are commonly used to correct for involuntary head motions in fMRI. We found that lid closure increased signal intensity of the eyes by a factor of 1.6 to 2 in EPI-fMRI. If the eyes were included in the scanning volume, transitions from eyes open to eyes closed in darkness were regularly associated with erroneously detected head translations along the z-axis and head...

People naturally move their heads when they speak, and our study shows that this rhythmic head motion conveys linguistic information. Three-dimensional head and face motion and the acoustics of a talker producing Japanese sentences were recorded and analyzed. The head movement correlated strongly with the pitch (fundamental frequency) and amplitude of the talker’s voice. In a perception study, ...

The aim of this paper is to explore some aspects of the syntax-semantics interface representations which correspond to expletive negation (EN) and negative concord (NC). I shall postulate that a syntactic operation of logical absorption, conceived as feature checking, is needed in the theory of grammar in order to account for both phenomena. EN instantiates a nonnegative context; it will be cha...

Since the invention of the movable head disk, people have improved I/O performance by intelligent scheduling of disk accesses. Processor speed and memory capacity are increasing several times faster than disk speed. This disparity suggests that disk I/O performance w ill become an important bottleneck .Methods are needed for using disks more eff iciently. Past analysis of disk scheduling algori...

We investigated the effects of listeners' head movements and proprioceptive feedback during sound localization practice on the subsequent accuracy of sound localization performance. The effects were examined under both restricted and unrestricted head movement conditions in the practice stage. In both cases, the participants were divided into two groups: a feedback group performed a sound local...

This thesis surveys the interaction between non-verbal predication in matrix clauses and processes of head-movement. Focusing mainly on the syntax of Modern Irish nominal predicates, it is claimed that matrix non-verbal predication can occur without any verbal support. When this happens, non-verbal predicates bear inflectional features directly and behave just like verbs with respect to process...

In the attempt to understand the fundamental properties of human language, in virtue of which it can be acquired and used as it is, the most common strategy is to propose a grammar G that provides a reasonable account of some particular structures of expressions in particular languages. For example, there are proposals in this volume about verbal complexes in German, about agreement on nouns in...

Knowledge of how the head moves during locomotion is essential for understanding how locomotion is controlled by sensory systems of the head. We have analyzed head movements of the cat walking along a straight flat pathway in the darkness and light. We found that cats' head left-right translations, and roll and yaw rotations oscillated once per stride, while fore-aft and vertical translations, ...

While Virtual Reality applications are increasingly attracting the attention of developers and business analysts, the behaviour of users watching 360-degree (i.e. omnidirectional) videos has not been thoroughly studied yet. This paper introduces a dataset of head movements of users watching 360-degree videos on a Head-Mounted Display (HMD). The dataset includes data collected from 59 users watc...