Chapter 14 - Sleep and developmental plasticity: not just for kids
Section snippets
Historical approaches to neonatal sleep function
Scientific views about sleep in early life have been greatly influenced by the seminal work of Howard Roffwarg and colleagues. In their present classic study in human infants, Roffwarg et al. (1966) proposed that the large amounts of rapid-eye-movement (REM) sleep in early infancy provide an important source of endogenous neural activity necessary for brain maturation. In the more recent formulations of the “Ontogenetic Hypothesis,” it is suggested that REM sleep not only promotes normal brain
Sleep and subcortical development in central visual pathways
A series of studies in the 1980s demonstrated a potential role for REM sleep in the early development of the LGN. Davenne and Adrien examined changes in neuronal morphology in the LGN in kittens after lesioning PGO generating centers in the brainstem (Davenne and Adrien, 1984). Bilateral electrolytic lesions in the rostral pontine tegmentum abolished PGO waves in the neonatal cat, resulting in smaller LGN volumes and reduced LGN soma sizes. A second study showed that PGO wave elimination
Sleep and ocular dominance plasticity
Ocular dominance plasticity (ODP) refers to physiological and anatomical changes in visual cortical circuits triggered by alterations in binocular vision. Although originally described in developing animals (Hubel and Wiesel, 1970, Wiesel and Hubel, 1963), ODP also occurs in the adult brain (Sato and Stryker, 2008, Sawtell et al., 2003) and shares in common numerous mechanisms that mediate plasticity in the hippocampus and nonsensory cortex. For example, like hippocampal-based synaptic
Summary
The Ontogenetic Hypothesis, at least in broad strokes, appears to have stood the test of time. Although much less work has been done in this area compared to other areas in sleep biology, there is a core set of findings that supports a role for sleep in brain development and plasticity. There are also a number of intriguing, unanswered questions yet to be explored.
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2023, Neurobiology of Sleep and Circadian RhythmsCellular and molecular mechanisms underlying autism spectrum disorders and associated comorbidities: A pathophysiological review
2022, Biomedicine and PharmacotherapyCitation Excerpt :In this context, studies from developing human and animal brains have shown that merging role of sleep in the maturation and development of the brain and children with poor sleep usually experience several psychiatric, attention, behavioral, and cognitive problems in later life [11,234]. Indeed, it has been reported that sleep is essential for cortical maturation, myelination, synapse formation, the proliferation of oligodendrocytes, and modulation of neural cell membrane homeostasis [11,235–239]. In this view, studies have shown that rapid eye movement (REM) sleep is essential for the early myelination of the sensory processing areas and plays a key role in eliminating and maintaining the newly formed synapses, thus controlling the process of learning and memory [11,239,240].
Sleep Assessment for Sleep Problems in Children
2021, Nursing Clinics of North AmericaCitation Excerpt :Sleep is an active process with varying functions that differ with age and development, and are inclusive of, but not limited to, brain development,1 synaptic plasticity,2,3 learning and attention,4 emotional regulation,5 and behavior.6
Developmental pathways towards mood disorders in adult life: Is there a role for sleep disturbances?
2019, Journal of Affective DisordersCitation Excerpt :Particularly, Ringli and Huber (201l) hypothesized that slow wave sleep may contribute to cortical maturation by playing a role in the balance of brain synaptic strengthening/formation weakening/elimination that is titled during development (Ringli and Huber 201l). Sleep, especially slow wave activity, has been hypothesized to normalize synaptic strength and shape plastic brain processes (Frank 2011; Kayser et al., 2014; Kurth et al., 2015). In particular animal studies have shown that during critical periods of life, sleep is required for plastic processes underlying the maturation of specific brain circuits (Ringli and Huber 201l; Kayser et al., 2014; Kurth et al., 2015).
Functions and Circuits of REM Sleep
2019, Handbook of Behavioral Neuroscience