Clinical outcomes from bilateral versus unilateral stimulation of the pedunculopontine nucleus with and without concomitant caudal zona incerta region stimulation in Parkinson's disease (2012)
Journal Article

Introduction. The Pedunculopontine nucleus is a novel target for deep brain stimulation and this may improve postural instability and gait dysfunction in Parkinson's disease. If unilateral Pedunculopontine nucleus stimulation is as efficacious as bil... Read More about Clinical outcomes from bilateral versus unilateral stimulation of the pedunculopontine nucleus with and without concomitant caudal zona incerta region stimulation in Parkinson's disease.

Low priority? A cross sectional study of appearance anxiety in 500 consecutive referrals for cosmetic surgery (2012)
Journal Article

Low priority treatment guidance is used in the National Health Service to manage requests for cosmetic surgery where there is no associated functional impairment. Provision is made in this guidance to provide surgery on exceptional grounds, and this... Read More about Low priority? A cross sectional study of appearance anxiety in 500 consecutive referrals for cosmetic surgery.

Combined pedunculopontine-subthalamic stimulation in Parkinson disease (2012)
Journal Article

Objective: To assess the effect of deep brain stimulation (DBS) in the pedunculopontine nucleus (PPN) and caudal zona incerta (cZi)-both separately and in combination-on motor symptoms and regional cerebral blood flow (rCBF) in patients with Parkinso... Read More about Combined pedunculopontine-subthalamic stimulation in Parkinson disease.

Do ants need to be old and experienced to teach? (2012)
Journal Article

Learning is widespread in invertebrates. However, whether social insects improve their recruitment skills with experience is only beginning to be investigated. Tandem running is a one-to-one form of recruitment used by certain species of ant. It is a... Read More about Do ants need to be old and experienced to teach?.

Pain-related bias in the classification of emotionally ambiguous facial expressions in mothers of children with chronic abdominal pain (2012)
Journal Article

This study sought to determine whether mothers of young people with chronic abdominal pain (CAP) compared to mothers of pain-free children show a pain recognition bias when they classify facial emotional expressions. One hundred demographically match... Read More about Pain-related bias in the classification of emotionally ambiguous facial expressions in mothers of children with chronic abdominal pain.

Traffic instabilities in self-organized pedestrian crowds (2012)
Journal Article

In human crowds as well as in many animal societies, local interactions among individuals often give rise to self-organized collective organizations that offer functional benefits to the group. For instance, flows of pedestrians moving in opposite di... Read More about Traffic instabilities in self-organized pedestrian crowds.

Measuring poverty/health: A cautionary note (2012)
Journal Article

Economists use various measures to account for the effect of poverty, welfare or health on economic growth but there is a lack of understanding of the movement of such variables over time and whether countries experiences similar trends. This paper p... Read More about Measuring poverty/health: A cautionary note.

Convergence across Spanish provinces: Cross-section and pairwise evidence (2012)
Journal Article

Distribution free statistics are employed to investigate biennial income per capita convergence across 52 Spanish provinces over the period 1955-1997. Based upon ideas of concordance and discordance that capture convergence and divergence properties,... Read More about Convergence across Spanish provinces: Cross-section and pairwise evidence.

Traction on the cervix in theatre before anterior repair: Does it tell us when to perform a concomitant hysterectomy? (2012)
Journal Article

Objective: To evaluate the surgical outcome of uterine preservation during anterior colporrhaphy, in women with apparent uterine descent, after the application of validated cervical traction under anaesthesia. Study design: This study was conducted a... Read More about Traction on the cervix in theatre before anterior repair: Does it tell us when to perform a concomitant hysterectomy?.

Modelling vocabulary growth in a foreign language (2012)
Journal Article

Many studies in a variety of educational contexts show that learning curves are non-linear (e.g. Freedman 1987 for the development of story telling skills in the first language, De Keyser 1997 for the acquisition of morphosyntactic rules of an artifi... Read More about Modelling vocabulary growth in a foreign language.

Maximum urethral closure pressure in women: Normative data and evaluation as a diagnostic test (2012)
Journal Article

Introduction and hypothesis: Our goal was to identify correlates of maximum urethral closure pressure (MUCP) and MUCP as a diagnostic test for stress urinary incontinence (SUI). Methods: This study was a retrospective review of women with non-neurolo... Read More about Maximum urethral closure pressure in women: Normative data and evaluation as a diagnostic test.

Ants in a labyrinth: A statistical mechanics approach to the division of labour (2011)
Journal Article

Division of labour (DoL) is a fundamental organisational principle in human societies, within virtual and robotic swarms and at all levels of biological organisation. DoL reaches a pinnacle in the insect societies where the most widely used model is... Read More about Ants in a labyrinth: A statistical mechanics approach to the division of labour.

Group dynamics and record signals in the ant Temnothorax albipennis (2011)
Journal Article

Many purely physical complex systems, in which there are both stochasticity and local interactions between the components, exhibit record dynamics. The temporal statistics of record dynamics is a Poisson process operating on a logarithmic rather than... Read More about Group dynamics and record signals in the ant Temnothorax albipennis.

Outcomes from stimulation of the caudal zona incerta and pedunculopontine nucleus in patients with Parkinson's disease (2011)
Journal Article

Introduction. Axial symptoms including postural instability, falls and failure of gait initiation are some of the most disabling motor symptoms of Parkinson's disease (PD). We performed bilateral deep brain stimulation (DBS) of the pedunculopontine n... Read More about Outcomes from stimulation of the caudal zona incerta and pedunculopontine nucleus in patients with Parkinson's disease.

Blinkered teaching: Tandem running by visually impaired ants (2011)
Journal Article

During tandem runs, one ant worker recruits another to an important resource. Here, we begin to investigate how dependent are tandem leaders and followers on visual cues by painting over their compound eyes to impair their vision. There are two ways... Read More about Blinkered teaching: Tandem running by visually impaired ants.

Comment on P. Nouvellet, J.P. Bacon, D. Waxman, "Testing the level of ant activity associated with quorum sensing: An empirical approach leading to the establishment and test of a null-model" (2011)
Journal Article

Time-course of attentional bias for threat-related cues in patients with chronic daily headache-tension type: Evidence for the role of anger (2011)
Journal Article

This study investigated the role of anger in attentional bias for linguistic threat-related stimuli in individuals with chronic daily headache (CDH) tension type and healthy controls. Attentional bias was assessed using a visual probe task which pres... Read More about Time-course of attentional bias for threat-related cues in patients with chronic daily headache-tension type: Evidence for the role of anger.

A Tobit regression model of football performance variables for a profitable fixed odds betting strategy (2011)
Journal Article

A quantitative comparison of psychological and emotional health measures in 360 plastic surgery candidates: Is there a difference between aesthetic and reconstructive patients? (2010)
Journal Article

This study examines the utility of the aesthetic and reconstructive categorization for making treatment decisions in patients seeking facial surgery. A total of 360 patients with aesthetic or combined functional aesthetic deficits were included. Vali... Read More about A quantitative comparison of psychological and emotional health measures in 360 plastic surgery candidates: Is there a difference between aesthetic and reconstructive patients?.

Ant search strategies after interrupted tandem runs (2010)
Journal Article

Tandem runs are a form of recruitment in ants. During a tandem run, a single leader teaches one follower the route to important resources such as sources of food or better nest sites. In the present study, we investigate what tandem leaders and follo... Read More about Ant search strategies after interrupted tandem runs.