Chapter 2: Attention and Conscious Awareness

Attention and Conscious Awareness establishes the right hemisphere as the primary mediator of global, sustained, and vigilant attention, whereas the left hemisphere is characterized by narrow, focal, and piecemeal attention. Through the lens of clinical neuropsychology, the text explores the devastating consequences of right hemisphere damage, particularly the condition known as hemineglect, where patients do not merely fail to see the left side of space but lose the very concept of its existence. This loss extends beyond simple vision into an ontological breakdown where the left hemisphere, left to its own devices, creates a self-enclosed loop of denial (anosognosia) and indifference (anosodiaphoria). The chapter details how the hemispheres process time, space, and motion differently: the right hemisphere underwrites the continuous flow of time (durée), three-dimensional depth, and fluid motion, while the left hemisphere reduces reality to static snapshots, flattened schematic surfaces, and stroboscopic or frozen frames (akin to the Zeitraffer phenomenon or palinopsia). Significant attention is given to disorders of the embodied self, such as somatoparaphrenia, where patients disown their own limbs or attribute them to others, and the left hemisphere's propensity for confabulation, where it invents implausible stories to bridge gaps in understanding without hesitation or doubt. The discussion extends to psychiatric conditions like schizophrenia, Capgras syndrome, and Fregoli syndrome, illustrating how right hemisphere dysfunction leads to a fragmentation of the self and the world, replacing unique, enduring identities with duplicates and impostors. Ultimately, the chapter argues that the left hemisphere has an affinity for the inanimate and mechanical, tending to devitalize the world into manipulated parts, whereas the right hemisphere is essential for perceiving living wholes, emotional depth, and the integrated continuity of existence.