Virtual reality rehabilitation systems often represent actions through virtual limbs. However, previous observation-only studies suggest that frontoparietal networks involved in action observation and execution may also be engaged by simpler virtual effectors. In the present fMRI study, we examined whether the visual presence of a virtual limb modulates brain activity during both action execution and action observation in a vi...

Puerto Rico (PR) and the US Virgin Islands (VI), two archipelagos located in the Caribbean region, possess forest ecosystems with high species diversity, which remain largely underrepresented in forest modeling research compared to temperate forests. Accurately characterizing tree allometry is essential for monitoring forest status over time and predicting tree growth and yield in sustainable forest management. Height-diameter...

Aim Seasonally dry tropical forest ( SDTF ) of the Caribbean Islands (primarily West Indies) is floristically distinct from Neotropical SDTF in Central and South America. We evaluate whether tree species composition was associated with climatic gradients or geographical distance. Turnover (dissimilarity) in species composition of different islands or among more distant sites would suggest communities structured by speciation a...