O direito à imagem na Constituição Portuguesa e a actuação do repórter fotográfico

Desde há muito que se discute o papel da comunicação social na sociedade actual, a sua importância e os seus limites, nomeadamente no que diz respeito à actuação, direitos e deveres dos repórteres fotográficos quando está em causa o direito à imagem das pessoas enquanto inegável direito de personalidade. Sem dúvida que a globalização, a rapidez da informação e a competição entre os meios de comunicação social tem posto à prova o equilíbrio entre o direito à imagem e a liberdade de imprensa. É precisamente em situações desta natureza que os repórteres fotográficos têm procurado respostas de forma a agir dentro dos seus direitos e deveres e ao mesmo tempo no respeito pelos direitos das pessoas

Pitch Processing Sites in the Human Auditory Brain

Lateral Heschl's gyrus (HG), a subdivision of the human auditory cortex, is commonly believed to represent a general “pitch center,” responding selectively to the pitch of sounds, irrespective of their spectral characteristics. However, most neuroimaging investigations have used only one specialized pitch-evoking stimulus: iterated-ripple noise (IRN). The present study used a novel experimental design in which a range of different pitch-evoking stimuli were presented to the same listeners. Pitch sites were identified by searching for voxels that responded well to the range of pitch-evoking stimuli. The first result suggested that parts of the planum temporale are more relevant for pitch processing than lateral HG. In some listeners, pitch responses occurred elsewhere, such as the temporo-parieto-occipital junction or prefrontal cortex. The second result demonstrated a different pattern of response to the IRN and raises the possibility that features of IRN unrelated to pitch might contribute to the earlier results. In conclusion, it seems premature to assign special status to lateral HG solely on the basis of neuroactivation patterns. Further work should consider the functional roles of these multiple pitch processing sites within the proposed network

The nucleoside transporters and adenosine regulation of nociceptive neurotransmission in the mammalian dorsal horn

EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Gabapentin evoked changes in functional activity in nociceptive regions in the brain of the anaesthetized rat: an fMRI study

Random effect analysis revealed that the lower dose of GBP produced significant (P<0.001) increases in BOLD signal intensity in several brain regions, including the thalamus and periaqueductal grey (PAG), compared to basal. This dose of GBP also produced significant (P<0.001) decreases in BOLD signal intensity in the amygdala and the entorhinal cortex. Increasing the dose of GBP (100 mg kg(-1)) produced significantly greater changes in BOLD signal intensity in several brain regions including the thalamus and PAG. MAP was not significantly altered by GBP, compared to saline.Conclusions and implications: GBP had marked positive and negative effects on BOLD signal intensity in a number of brain regions in naïve rats. The activation of key areas involved in nociceptive processing indicate a supraspinal site of action of GBP and this may contribute to its well-described analgesic effects in animal models of pain and clinical studies