Appearance of frontal mid-line theta rhythm during sleep and its relation to mental activity

Hayashi, Hideaki; Iijima, S; Sugita, Yoshiro; Teshima, Yoshio; Tashiro, Tetsuo; Matsuo, Ryunosuke; Yasoshima, Aki; Hishikawa, Yasuo; Ishihara, Tsutomu

doi:10.1016/0013-4694(87)90139-8

Cited by 16 publications

(3 citation statements)

References 4 publications

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“…Consequently, ''limbic theta oscillation'' is a more appropriate term than hippocampal theta (Buzsaki, 2002). There is some evidence that the midline prefrontal region of the human cortex can generate theta activity in certain states (Hayashi et al, 1986;Lang et al, 1987;Mizuki et al, 1980). Miller (1991) argues that all these data are compatible with the thesis that theta activity in frontal regions is associated with a theta activity in the hippocampus in view of the strong connections between the two structures.…”

Section: Theta Oscillationsmentioning

confidence: 92%

Motivation, emotion, and their inhibitory control mirrored in brain oscillations

Knyazev

2007

Neuroscience & Biobehavioral Reviews

753

594

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Section: Theta Oscillationsmentioning

confidence: 92%

Motivation, emotion, and their inhibitory control mirrored in brain oscillations

Knyazev

2007

Neuroscience & Biobehavioral Reviews

753

594

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“…As θ activity facilitates synaptic plasticity, with long-term potentiation organized around the phase of the θ wave [ 46 ], its increasing power could reflect expanding sleep-specific brain functions. In adults, θ activity is prominent in REM sleep but extremely scarce in non-REM sleep [ 24 , 47 , 48 ]. This pattern is reversed in our neonatal cohort, emphasizing the need for models which interpret the functional role of neural oscillations within a developmental framework.…”

Section: Discussionmentioning

confidence: 99%

Emergence of mature cortical activity in wakefulness and sleep in healthy preterm and full-term infants

Whitehead

Laudiano‐Dray

Meek

et al. 2018

Sleep

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Study ObjectivesCortical activity patterns develop rapidly over the equivalent of the last trimester of gestation, in parallel with the establishment of sleep architecture. However, the emergence of mature cortical activity in wakefulness compared with sleep states in healthy preterm infants is poorly understood.MethodsTo investigate whether the cortical activity has a different developmental profile in each sleep–wake state, we recorded 11-channels electroencephalography (EEG), electrooculography (EOG), and respiratory movement for 1 hr from 115 infants 34 to 43 weeks–corrected age, with 0.5–17 days of postnatal age. We characterized the trajectory of δ, θ, and α-β oscillations in wakefulness, rapid eye movement (REM) sleep, and non-REM sleep by calculating the power spectrum of the EEG, averaged across artifact-free epochs.Resultsδ-Oscillations in wakefulness and REM sleep decrease with corrected age, particularly in the temporal region, but not in non-REM sleep. θ-Oscillations increase with corrected age in sleep, especially non-REM sleep, but not in wakefulness. On the other hand, α-β oscillations decrease predominantly with postnatal age, independently of sleep–wake state, particularly in the occipital region.ConclusionsThe developmental trajectory of δ and θ rhythms is state-dependent and results in changed cortical activity patterns between states with corrected age, which suggests that these frequency bands may have particular functional roles in each state. Interestingly, postnatal age is associated with a decrease in α-β oscillations overlying primary visual cortex in every sleep–wake state, suggesting that postnatal experience (including the first visual input through open eyes during periods of wakefulness) is associated with resting-state visual cortical activity changes.

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“…Foulkes (1962) investigated whether subjects could recall any mental experience from NREM awakenings by asking, “Was anything going though your mind?” He reported that subjects were able to recall some type of mental experience after 87 percent of the REM sleep awakenings and after 74 percent of the NREM awakenings. This led a number of investigators to attempt to find objective indicators of the presence of dreaming in sleep stages other than REM (Pessah and Roffwarg, 1972; Rechtschaffen, Watson, Wincor, Molinari, and Barta, 1972; Rechtschaffen, 1973; Hayashi, et al, 1987). To date, the hope of finding a reliable external indicator of NREM dreaming has been in vain (Pivik, 1991).…”

Section: Locating Nrem Dreamsmentioning

confidence: 99%

The collection of home and laboratory dreams by means of an instrumental response technique.

Lloyd¹,

Cartwright²

1995

Dreaming

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A new technology for dream collection, an instrumental response technique, was used to record dreams in both the sleep laboratory and in the subjects' own homes. This technique employs a switch attached to the sleeper's hand. The subject is asked to depress the switch to signal the presence of dream experiences during sleep. Comparisons were made between dream reports from home and laboratory collected under uniform sampling conditions. Differences in signalling frequency between REM and NREM sleep were noted. The effect of training to identify dreams by awakenings from REM when no spontaneous signal was given was examined. Results showed that: 1) There were no significant content differences between home and laboratory dreams when the dreams were collected in the same way. 2) This technique is useful in identifYing dreams taking place in sleep other than REM which has been difficult to do in the past. 3) Subjects trained to identify dreams performed better than untrained subjects.

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Appearance of frontal mid-line theta rhythm during sleep and its relation to mental activity

Cited by 16 publications

References 4 publications

Motivation, emotion, and their inhibitory control mirrored in brain oscillations

Motivation, emotion, and their inhibitory control mirrored in brain oscillations

Emergence of mature cortical activity in wakefulness and sleep in healthy preterm and full-term infants

The collection of home and laboratory dreams by means of an instrumental response technique.

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