“Anomalous” Representations and Perceptions: Implications for Human Neuroplasticity

摘要: Changes in the perception and representation of body observed brain damaged amputee patients hint at plastic nature schema. Evidence for integration external objects into schema comes from a woman with large right-hemisphere stroke who affirmed that paralysed left hand was not her own but belonged to someone else. Although able see describe rings she had worn years currently wearing on left, now disowned hand, this patient resolutely denied their ownership. By contrast, no difficulties recognising these as when they were shifted right or displayed by examiner front her. Similarly, promptly acknowledged ownership other personal belongings previous experience been ordinarily associated (e.g., comb). Complex dynamic aspects are also revealed recent evidence limb breast amputees vivid phantom sensations can arise result tactile stimulations applied regions distant amputation line. Sensations example, be elicited stimuli delivered lower face side amputation. Like concurrent veridical facial sensations, evoked may convey precise information about different features stimuli. Given representional contiguity stimulation probably caused an appropriation original somatosensory lost sensory inputs inherent adjacent representation.