-
Article
Open AccessIntercepting accelerated moving targets: effects of practice on movement performance
When performing a rapid manual interception, targets moving under constant motion are often intercepted with greater accuracy when compared to targets moving under accelerated motion. Usually, accelerated targ...
-
Article
The early release of actions by loud sounds in muscles with distinct connectivity
The presentation of an unexpected and loud auditory stimulus (LAS) during action preparation can trigger movement onset much sooner than normal. Recent research has attributed this effect to the activation of ...
-
Article
Open AccessDelayed inhibition of an anticipatory action during motion extrapolation
Continuous visual information is important for movement initiation in a variety of motor tasks. However, even in the absence of visual information people are able to initiate their responses by using motion ex...
-
Article
Real-time error detection but not error correction drives automatic visuomotor adaptation
We investigated the role of visual feedback of task performance in visuomotor adaptation. Participants produced novel two degrees of freedom movements (elbow flexion–extension, forearm pronation–supination) to...
-
Article
Preparation and inhibition of interceptive actions
Two experiments aimed to provide an estimate of the last moment at which visual information needs to be obtained in order for it to be used to initiate execution of an interceptive movement or to withhold exec...
-
Article
The efficacy of colour cues in facilitating adaptation to opposing visuomotor rotations
We investigated visuomotor adaptation using an isometric, target-acquisition task. Following trials with no rotation, two participant groups were exposed to a random sequence of 30° clockwise (CW) and 60° coun...
-
Article
The time course of amplitude specification in brief interceptive actions
The interception of fast moving objects typically allows the object to be seen for only a short period of time. This limits the time available to prepare the movement. To deal with short preparation intervals,...
-
Article
Dual adaptation to two opposing visuomotor rotations when each is associated with different regions of workspace
Studies examining dual adaptation to opposing novel environments have yielded contradictory results, with previous evidence supporting both successful dual adaptation and interference leading to poorer adaptiv...
-
Article
Neuromuscular-skeletal constraints on the acquisition of skill in a discrete torque production task
The organisation of the human neuromuscular-skeletal system allows an extremely wide variety of actions to be performed, often with great dexterity. Adaptations associated with skill acquisition occur at all l...
-
Article
Systematic changes in the duration and precision of interception in response to variation of amplitude and effector size
The results of two experiments are reported that examined how performance in a simple interceptive action (hitting a moving target) was influenced by the speed of the target, the size of the intercepting effec...
-
Article
Hitting a moving target: Perception and action in the timing of rapid interceptions
Different interceptive tasks and modes of interception (hitting or capturing) do not necessarily involve similar control processes. Control based on preprogramming of movement parameters is possible for action...
-
Article
Initiation of evasive manoeuvres during self-motion: a test of three hypotheses
To understand performance of evasive and interceptive actions it is important to know how people decide when to initiate a movement—initiating at the ‘right’ moment is often essential for successful performanc...
-
Article
Intercepting a moving target: effects of temporal precision constraints and movement amplitude
The effects of temporal precision constraints and movement amplitude on performance of an interceptive aiming task were examined. Participants were required to strike a moving target object with a 'bat' by mo...
-
Article
Monocular and binocular distance cues: insights from visual form agnosia I (of III)
The human nervous system constructs a Euclidean representation of near (personal) space by combining multiple sources of information (cues). We investigated the cues used for the representation of personal sp...
-
Article
The effect of obstacle position on reach-to-grasp movements
Numerous everyday tasks require the nervous system to program a prehensile movement towards a target object positioned in a cluttered environment. Adult humans are extremely proficient in avoiding contact wit...
-
Article
Vergence provides veridical depth perception from horizontal retinal image disparities
One useful source of depth information available to the human nervous system is present in the horizontal disparities that exist between the two retinal images (stereoscopic depth). The relationship between h...
-
Article
Getting the measure of vergence weight in nearness perception
Combining multiple sources of information allows the human nervous system to construct an approximately Euclidean representation of near (personal) space. Within this space, binocular vergence is an important...
-
Article
The size-distance paradox is a cognitive phenomenon
The perceived size of a fixated object is known to be a function of the perceived fixation distance. The size-distance paradox has been posited as evidence that the perceived distance of a fixated object is, ...
-
Article
Analysis of recent empirical challenges to an account of interceptive timing
How do we perceive how long it will be before we reach a certain place when running, driving, or skiing? How do we perceive how long it will be before a moving object reaches us or will arrive at a place where...
-
Article
A framework for considering the role of afference and efference in the control and perception of ocular position
It has been well established that extra-retinal information is used in the perception of visual direction and distance. Furthermore, a number of studies have established that both efference copy and afferent ...
