We recently found that older adults show reduced learning rates when a new pattern of coordinated rhythmic movement. The purpose this study was to extend finding by examining the performance all ages across lifespan from 20 s through 80 determine how change with age. tested whether could learn produce novel movement (90° relative phase) in visually guided unimanual task. determined quantify changes age and at what occur. found, as before, participants their 70 were half those s. also gradual...

Abstract Older adults (OAs) are typically slower and/or less accurate in forming perceptual choices relative to younger adults. Despite deficits, OAs gain from integrating information across senses, yielding multisensory benefits. However, the cognitive processes underlying these seemingly discrepant ageing effects remain unclear. To address this knowledge gap, 212 participants (18–90 years old) performed an online object categorisation paradigm, whereby age-related differences Reaction...

Monocular blur sometimes impairs locomotion; however, it is not always clear when this will happen. Optic flow (the apparent motion of scene texture elements that occurs during self-motion) provides powerful signals about the direction travel. Here, we test whether monocular heading perception from optic compared to full vision under various levels degradation. Participants ( N = 52, mean age 30 years) completed contrast sensitivity, visual acuity, and tasks with rich or degraded flow,...

The ability to move one's hand quickly and accurately towards a target is an essential skill that underpins many activities of daily living, such as writing or threading needle. In-lab research has previously demonstrated the time taken complete aiming task proportional difficulty; however, strength this relationship appears reduce quality visual input becomes degraded (Wu et al, 2010). There also evidence when compared full vision, monocular vision leads general increase in movement during...

G. P. Bingham and C. Pagano (1998, The necessity of a perception/action approach to definite distance perception: Monocular perception guide reaching. Journal Experimental Psychology: Human Perception Performance, 24, 145-168) argued that metric space should be investigated using relevant action measures because calibration is an intrinsic component yields accurate targeted actions. They described as mapping from embodied units action. This theory number predictions. We tested two them....

Abstract Do motor patterns of object lifting movements change as a result ageing? Here we propose methodology for the characterization these across individuals different age groups. Specifically, employ bimanual grasp-lift-replace protocol with younger and older adults combine measurements muscle activity grip load forces to provide window into strategies supporting effective lifts. We introduce tensor decomposition identify grip-load force ratios while also characterizing their temporal...

Bingham and Pagano (1998) argued that calibration is an intrinsic component of perception-action yields accurate targeted actions. They described as a mapping from embodied units perception to action. This theory number predictions. The authors tested 2 them. 1st prediction change in the size perceptual should yield corresponding slope relation between response distances actual target distances. In Experiment 1, this by manipulating interpupillary distance (IPD) unit for binocular using...

The ability to interact skilfully with the environment is essential for independent living and therefore a critical factor aging population. Here we investigate differences between young older adults in bimanual reaching task where goal bring two objects together same location synchronous placement. Older (mean age 74) 20) were asked pick up spatially disparate objects, one each hand, them place of three trays laid out front from left right. results showed that no more detrimentally affected...

Good visual acuity (VA) and contrast sensitivity (CS) are essential for many behaviours (from reading to driving), tests of function have become crucial purposes. Clinicians researchers administer the clinically validated versions these under carefully controlled lighting conditions. However, rapid expansion online testing highlights great utility having available in digital format. We conducted two experiments determine whether accurate reliable VA CS is possible. Firstly, participants...

Abstract Objectives In young adults, the ability to verbally recall instructions in working memory is enhanced if sequences are physically enacted by participant (self-enactment) or experimenter (demonstration) during encoding. Here we examine effects of self-enactment and demonstration at encoding on performance older younger adults. Method Fifty (18–23 years) 40 (60–89 adults listened novel action-object pairs before recalling them correct order. There were three different conditions:...

This study aimed to investigate perceptions of what it means "age well" and explore similarities differences between a Western non-Western culture (Britain Java). Qualitative interviews explored how Javanese British older adults defined aging well, establishing the cultures. (n = 14) 15) aged 61-80 (mean age 68) participated. The data were analyzed using reflexive thematic analysis organized with NVivo. Four themes identified that captured well across cultures: (a) good health is springboard...

Objectives This study investigated (1) whether there are differences in life satisfaction levels between young adults (YA) and older (OA), (2) which factors associated with these groups.

Injury to the cervical spinal cord results in bilateral deficits arm/hand function reducing functional independence and quality of life. To date little research has been undertaken investigate control strategies movements following injury (cSCI). This study aimed unimanual bimanual coordination patients with acute cSCI using 3D kinematic analysis as they performed naturalistic reach grasp actions one hand, or both hands together (symmetrical task), compare this movement patterns uninjured...

Abstract Background Trigeminal neuralgia (TN) is an orofacial condition defined by reoccurring, spontaneous, short-lived but excruciating stabbing pain. Pharmacological interventions constitute the first-line treatment for TN, with antiepileptic drugs commonly prescribed. People treated TN pain describe cognitive and motor difficulties affecting activities of daily living, report poorer quality life. We undertook first comprehensive objective evaluation sensorimotor performance in...

Mon-Williams and Bingham (2011) developed an affordance model of the spatial structure reaches-to-grasp. With a single free parameter (P), predicted safety margins (SMs) exhibited in maximum grasp apertures (MGAs), during approach hand to target object, as function measure object size functional size. An analysis revealed that is determined by diagonal through called extent. provided no theoretical account for empirically values P. We now address this question. Snapp-Childs (2009) augmented...