Dear Editor, Mucocoeles develop from paranasal sinuses. They are epithelium-lined, mucus containing lesions and present as slowly enlarging masses. The frontal sinus is most commonly involved, whereas sphenoid, ethmoid and maxillary mucocoeles are rare.1 Accumulation of mucus secretion, generally, is caused by paranasal sinus infl ammation, fi brosis, trauma, previous surgery, anatomical abnorm...

How does the human brain allow us to interact with and navigate through a constantly changing world? Whilst controlled experiments using functional brain imaging can give insightful snapshots of neuronal responses to relatively simplified stimuli, they cannot hope to mirror the challenges faced by the brain in the real world. However, trying to study the brain mechanisms supporting daily living...

Performance on the Twenty Questions task has been assumed to be deficient in those with frontal lobe damage, although few studies have specifically examined this. In the present study, 88 participants with frontal lobe epileptic dysfunction were assessed on this task, as were 57 participants with temporal lobe epileptic disturbance and 28 participants with no evidence of any neurological damage...

The empirical foundation of executive control function (ECF) remains controversial. We have employed structural equation models (SEM) to explicitly distinguish domain-specific variance in executive function (EF) performance from memory (MEM) and shared cognitive performance variance, i.e., Spearman's "g." EF does not survive adjustment for both MEM and g in a well fitting model of data obtained...

According to the dissociated-control hypothesis forwarded by Woody and Bowers (1994), the effects of hypnosis are consistent with attenuated frontal lobe functioning. The present study was designed to compare the performance of participants with high and low hypnotic ability on a variety of memory tasks thought to be sensitive to frontal lobe functioning, as well as some control memory tasks no...

It has been suggested that mental states play an important role in determining behaviour and that mental state attributions ("theory of mind") underlie the ability to understand and predict other peoples' behaviour. Theory of mind was investigated in 31 patients with unilateral frontal lobe lesions (15 right-sided and 16 left-sided) by comparing their performance with that of 31 matched control...

The definitive structure and functional role of the inferior fronto-occipital fasciculus (IFOF) are still controversial. In this study, we aimed to investigate the connectivity, asymmetry, and segmentation patterns of this bundle. High angular diffusion spectrum imaging (DSI) analysis was performed on 10 healthy adults and a 90-subject DSI template (NTU-90 Atlas). In addition, a new tractograph...