Allan
Hobson; Dreaming: An Introduction to the Science of Sleep |
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Book |
Page |
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Topic |
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Hobson; Dreaming |
19 |
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Freud was
an avowed atheist --
his rejection of religion was practically phobic. |
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Hobson; Dreaming |
26 |
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Physiological basis for the
differences between waking and sleeping consciousness. - (table) |
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7 |
Hobson; Dreaming |
30 |
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Dreaming brain is capable of simulating acts of
movement (motor acts) extremely convincingly. |
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4 |
Hobson; Dreaming |
42 |
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1953 discovery of REM sleep. |
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12 |
Hobson; Dreaming |
47 |
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Universal characteristics that REM sleep evinces are intense
frequent hallucinations. |
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5 |
Hobson; Dreaming |
55 |
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Hard problem'
of philosophy -- how the brain can have subjective experience. |
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8 |
Hobson; Dreaming |
56 |
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REM sleep
correspondence across species. All but
the most primitive mammals have periodic brain
activation during sleep. |
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1 |
Hobson; Dreaming |
56 |
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REM facilitates the consolidation and advancement of procedural
learning. |
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0 |
Hobson; Dreaming |
58 |
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Procedural learning is the acquired ability to do things when consciousness may
not be involved. |
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2 |
Hobson; Dreaming |
58 |
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REM sleep
is organized by the brain stem, including the reticular
formation. |
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0 |
Hobson; Dreaming |
58 |
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Active suppression of muscle tone invariably accompanies REM sleep. |
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0 |
Hobson; Dreaming |
58 |
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Brain can
be active in sleep without producing waking behavior because the motor
system is actively
blocked at the level of the spinal cord. |
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0 |
Hobson; Dreaming |
60 |
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Very low level parts of the brain stem generate motor patterns. [Stereotyped motor programs] [FAPs] |
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2 |
Hobson; Dreaming |
60 |
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Paroxysmal (PGO) waves arise in different
areas of the brain -- the pons of the brain stem reticular formation, the geniculate body of the
thalamus,
and the occipital cortex during REM sleep. |
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0 |
Hobson; Dreaming |
60 |
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Visual brain stimulates
itself during REM sleep - (diagram) |
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0 |
Hobson; Dreaming |
60 |
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PGO waves originating in the pons from neurons that move the eyes. These signals are conducted both to the lateral geniculate body in the thalamus and to the occipital
cortex. (diagram) |
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0 |
Hobson; Dreaming |
62 |
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Neuromodulation is a special kind of chemical neurotransmission by which the brain is able to change its state globally. |
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2 |
Hobson; Dreaming |
63 |
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Dramatic change in neuromodulation distinguishes REM sleep from waking. |
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1 |
Hobson; Dreaming |
63 |
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Brain-stem cells containing the neuromodulators norepinephrine and serotonin change their outputs when animals go to sleep. |
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Hobson; Dreaming |
63 |
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Serotonin and noradrenaline cells that modulate the brain during waking reduce their output by half during
non-REM sleep
and shut off completely during REM sleep. |
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0 |
Hobson; Dreaming |
63 |
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Serotonin
and noradrenaline implicated in awake
state functions (attention, memory, reflective thought) that are lost in dreaming. |
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0 |
Hobson;
Dreaming |
63 |
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Neuromodulatory neurons: (1) relatively few and relatively small, (2) highly localized to a few brain stem nuclei, (3) they are pacemaker cells; rhythmical and
spontaneous,
(4) fire at relatively low rates, metronome-like, (5) project their fine, multiply branching processes all over the brain and spinal
cord. |
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Hobson; Dreaming |
64 |
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Neuromodulatory cells of the brain stem (pons area) project up to the thalamus and cortex and down to the spinal cord. |
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1 |
Hobson; Dreaming |
64 |
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Brain self-activates in sleep; it changes its chemical
self-instructions. |
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0 |
Hobson; Dreaming |
64 |
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Minds are functional states of our brains; mind is not a
spirit; it is not an independent entity. |
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0 |
Hobson; Dreaming |
64 |
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Waking and dreaming are two states of consciousness, with differences that depend on chemistry. |
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Hobson; Dreaming |
67 |
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All the drugs that are used to treat psychoses have a role on the neuromodulators. |
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3 |
Hobson; Dreaming |
67 |
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Chemicals shift the balance of the brain to be awake or dreaming. |
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0 |
Hobson; Dreaming |
68 |
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Scientists think that all dreams are chemically mediated. |
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1 |
Hobson; Dreaming |
69 |
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REM sleep dreaming is mediated by acetylcholine when noradrenaline
and serotonin are at very low levels. |
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1 |
Hobson; Dreaming |
69 |
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Learning and memory hypothesis -- brain can trigger memory fragments with acetylcholine but cannot make new ones without noradrenaline and serotonin. |
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Hobson; Dreaming |
71 |
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REM sleep is important to mammalian
biology;
it is highly conserved across species. |
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2 |
Hobson; Dreaming |
72 |
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New human newborn infant offers one of
the best opportunities to observe REM behavior directly. |
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1 |
Hobson; Dreaming |
72 |
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In newborn
infants, REM occurs at sleep onset. |
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Hobson; Dreaming |
72 |
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Babies show
pleasure, fear, surprise, and disgust in the facial expressions of REM sleep. |
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Hobson; Dreaming |
72 |
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Human fetuses
at 30 weeks gestation show highly
organized and spontaneous movement, including eyes, face and limbs. |
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0 |
Hobson; Dreaming |
72 |
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Fictitious movement - the sense of moving in dream space - has been suggested by neurophysiologist Rodolfo Llinás as a contributor to self-hood or consciousness. |
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Hobson; Dreaming |
74 |
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The only
dimension of orientation that is secure in dreaming is a sense of
self -- I myself am always at the center of the
vortex that is my dream. |
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2 |
Hobson; Dreaming |
76 |
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Human fetus
at 30 weeks
gestation is spending almost 24 hours each day in a brain activated state that constitutes the first level of REM sleep. |
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2 |
Hobson; Dreaming |
76 |
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At birth, REM sleep occupies at least half of not less
than 16 hours of sleep each day. |
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0 |
Hobson; Dreaming |
77 |
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Brain stem is the seat of the most primordial regulatory systems (temperature, cardiovascular, respiratory, etc) |
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1 |
Hobson; Dreaming |
77 |
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Cholinergic
system of the brain
stem,
mediator of internal
bodily activation, develops
earlier than the serotoninergic and noradrenergic
systems. |
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0 |
Hobson; Dreaming |
77 |
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Later development of other chemical
systems, the aminergic systems (histamine, dopamine), shuts down infant sleep, reducing it by 400
percent from infancy to early adult life. |
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0 |
Hobson; Dreaming |
79 |
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Sleep length
varies widely - (diagram) |
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2 |
Hobson; Dreaming |
79 |
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Early days of 1960s, discovery of REM sleep had prompted a storm of experimental
enquiry. |
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Hobson; Dreaming |
83 |
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Sleep and dreaming science began at University of Chicago in early 1950s. |
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4 |
Hobson; Dreaming |
85 |
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Only mammals have REM sleep. |
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2 |
Hobson; Dreaming |
85 |
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Only in REM sleep that mammals
cannot thermoregulate. |
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0 |
Hobson; Dreaming |
86 |
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REM sleep is far more prevalent in newborn infants than in adults, suggesting that construction of the brain itself is one of the functions of brain
activation in sleep. |
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1 |
Hobson; Dreaming |
87 |
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We go
through our lives needing
to reconstruct our
brains and minds. |
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1 |
Hobson; Dreaming |
87 |
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Level of emotional
competence has a high
survival value (flee, fight,
feed, fornicate). |
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0 |
Hobson; Dreaming |
88 |
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Dreaming
includes intense emotion, which is often negative (anxiety,
fear, anger). |
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1 |
Hobson; Dreaming |
89 |
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Arousal from NREM
sleep, intense activation of the heart, breathing rate
increases, blood
pressure rises. |
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1 |
Hobson; Dreaming |
91 |
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REM sleep, one of the most common
dream experiences is imagined motion. |
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2 |
Hobson; Dreaming |
91 |
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Sleep walking, sleep talking, tooth grinding; movement behaviors that occur unexpectedly during
sleep. |
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0 |
Hobson; Dreaming |
92 |
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High-voltage slow waves of deep sleep continue while a person sleep walks. |
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1 |
Hobson; Dreaming |
95 |
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REM sleep behavior disorder
(RBD). Enact their dreams; many later develop parkinsonism. |
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3 |
Hobson; Dreaming |
96 |
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Prolonged use of the antidepressants (SSRIs)
can lead to RBD. Parkinsonism, dopamine deficiency. |
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1 |
Hobson; Dreaming |
96 |
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Serotonin,
a potent inhibitor of REM. |
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0 |
Hobson; Dreaming |
97 |
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Dreaming is
a psychotic state. |
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1 |
Hobson; Dreaming |
98 |
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Dreaming
and severe mental
illness are not only analogous
but identical. |
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1 |
Hobson; Dreaming |
98 |
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Psychosis is, by definition, a mental state characterized by hallucinations and/or delusions. |
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Hobson; Dreaming |
98 |
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Normal suspicion leads us to believe things about our lovers, colleagues, and governments that are either
untrue or highly
exaggerated. We don't need to hear voices to be paranoid. |
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0 |
Hobson; Dreaming |
99 |
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Which natural
class of psychosis is dreaming most like? (1) schizophrenia, (2) major affective disorder (such as depression and mania), or (3) an organic mental
illness,
e.g. delirium
resulting from drugs
or a high fever? |
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1 |
Hobson; Dreaming |
99 |
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Dream
hallucinations use sensory
modality of vision. |
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0 |
Hobson; Dreaming |
99 |
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Visual hallucinations are rare in
schizophrenia;
they are the very hallmark of organic delirium. |
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0 |
Hobson; Dreaming |
99 |
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Delusions
are exclusively cognitive/intellectual and never paranoid as is typical of schizophrenia. |
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0 |
Hobson; Dreaming |
99 |
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The grandiosity
and fearless elation of mania are shared with dream psychosis, although these
features are also found in organic delirium, especially in its chronic,
post-intoxication phase. |
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0 |
Hobson; Dreaming |
99 |
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When we are dreaming, times, places, and
people change without warning. This orientational instability is a variation on the organic
delirium theme of disorientation. |
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0 |
Hobson; Dreaming |
99 |
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Delirious
patients, similar to dreamers, know only who they are, not where
they are
or what day it is, or even who
is with them. |
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Hobson; Dreaming |
101 |
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Mental state
is a constantly negotiated compromise between the poles of waking sanity and dreaming madness. |
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2 |
Hobson; Dreaming |
103 |
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Sleep loss
is common in and contributes powerfully to the development
of psychosis. |
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2 |
Hobson; Dreaming |
103 |
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Schizophrenia
is thought to be a disorder of excessive dopamine
release and/or heightened
effectiveness of dopamine. |
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0 |
Hobson; Dreaming |
103 |
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In schizophrenia, we can hypothesize an indirect but positive interaction with
other modulators of the awake state, noradrenaline and serotonin, and a direct negative interaction with acetylcholine. |
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0 |
Hobson; Dreaming |
103 |
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No distinctive changes in sleep are seen in chronic schizophrenia. |
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0 |
Hobson; Dreaming |
110 |
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Limbic forebrain, which is known to mediate emotion and to motivate behavior in humans. |
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7 |
Hobson; Dreaming |
112 |
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Diminished psychological
function in dreaming shows an association with a lack of noradrenaline and serotonin in the REM
sleep-activated brain -- these two chemicals are known to be necessary for attention, learning, and memory
(and by implication for orientation and active reasoning). |
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2 |
Hobson; Dreaming |
115 |
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Strokes and
epileptic seizures can
cause decreases and increases in the formal features of dreams, respectively. |
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3 |
Hobson; Dreaming |
115 |
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Complete loss of dreaming can occur when there is
damage to the multimodal sensory part of the parietal cortex, or to the deep frontal white
matter of the brain. |
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Hobson; Dreaming |
115 |
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Cannot produce the psychological
experience of dreaming
without activating the parietal cortex or deep frontal white matter. These areas
constitute connections allowing other brain
regions to communicate with one another in such a
way as to sustain dream consciousness. |
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0 |
Hobson; Dreaming |
115 |
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When visual stimuli encoded by
the retina reach the primary visual cortex, some simple properties of images (such as edges or bars) are represented but the complexity of the whole images are
built up and represented elsewhere. |
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0 |
Hobson; Dreaming |
115 |
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More than 20 secondary or associative
visual areas in the cortex. |
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0 |
Hobson; Dreaming |
119 |
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REM sleep
subserves consolidation of memory. |
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4 |
Hobson; Dreaming |
119 |
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During REM
sleep the brain is
activated, and dreams are composed of memory fragments. |
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0 |
Hobson; Dreaming |
120 |
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Learning
and memory reorganization take place without our ever being aware of it. |
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1 |
Hobson; Dreaming |
121 |
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Dreams are visual and intensely emotional. |
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1 |
Hobson; Dreaming |
124 |
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We can learn a myriad of procedures without being able to describe them verbally. Procedural memory. |
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3 |
Hobson; Dreaming |
124 |
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Performance
correlates very strongly with deep early-night
sleep (NREM), and with
long late-night (REM) sleep. |
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0 |
Hobson; Dreaming |
128 |
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Declarative memory results from conscious awareness and associations, depends strongly on the hippocampus. |
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4 |
Hobson; Dreaming |
130 |
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Brain keeps a record
of experience in the
hippocampus, which is accessible for about a week by day but
inaccessible at night. |
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2 |
Hobson; Dreaming |
130 |
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Brain uses sleep to make bit-by-bit adjustments in its long-term repertoire of learning
and memory. |
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0 |
Hobson; Dreaming |
131 |
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Brain reworks memories into a much more general fabric of
inclinations to act
and feel in certain ways
in response to certain
stimulus conditions. |
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1 |
Hobson; Dreaming |
134 |
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Consciousness
can be defined as our awareness of the world, our bodies, and ourselves. Consciousness is a brain function. |
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3 |
Hobson; Dreaming |
134 |
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Areas of the brain dealing with
different components of consciousness. - (Table) |
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0 |
Hobson; Dreaming |
136 |
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Binding problem. |
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2 |
Hobson; Dreaming |
136 |
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Synchronicity
of the many brain regions contributing information to consciousness is achieved via rhythmically
harmonious activation of the many direct connections between the
regions. |
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Hobson; Dreaming |
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