People with Wilson's disease who also have rapid eye movement sleep behavior disorder (RBD) report more nightmares and dreams with violent or aggressive content than those without RBD, and their dream reports contain more negative emotions and aggression. Patients with Wilson's disease overall have shorter dream reports than healthy controls, which may reflect cognitive deficits. The lack of major differences in dream content between Wilson's disease patients and controls might be due to successful treatment. Violent, aggressive dream content appears characteristic of RBD in Wilson's disease as in other populations.
Foetuses in the second to third trimester may feel pain and exhibit different shades of consciousness, challenging the binary view of consciousness as simply present or absent. Advances in 4D ultrasound enable assessment of foetal facial expressions indicative of pain, leading to specialized foetal pain behaviour scales. Targeted hand movements, MEG, and EEG provide evidence of goal-directedness and action planning, while learning paradigms like habituation suggest preliminary memory and higher-order cognition. This position paper reviews current research on foetal pain behaviour and awareness, arguing that foetuses may possess levels of awareness and responsiveness necessary for pain perception.