music therapy my taik (2)

29
MUSIC THERAPY EMAN YOUSSIF

Upload: eman-youssif

Post on 15-Jul-2015

114 views

Category:

Health & Medicine


0 download

TRANSCRIPT

Page 1: Music therapy my taik (2)

MUSIC THERAPYEMAN YOUSSIF

Page 2: Music therapy my taik (2)

THE CONTENTTypes of wave length in the brain

Therapy with wave length music

Types of therapy for Alzheimer’s patients

Page 4: Music therapy my taik (2)

If u turn on radio wave lengthheadphone and computer recorderu listen by 2 earsif u had a 400 HZ tone in one earif u had 404 HZ in the otheru would receive a third tone of 4 HZso what????????

Page 5: Music therapy my taik (2)

Neural oscillations Neural oscillations are observed throughout the central nervous system and at all levels, e.g., spike trains, local field potentials and large-scale oscillations which can be measured by electroencephalography

Page 6: Music therapy my taik (2)

Neural oscillations and synchronization have been linked to many cognitive functions such as information transfer, perception, motor control and memory

Page 7: Music therapy my taik (2)

Neurons can generate rhythmic patterns of action potentials or spikes. Some types of neurons have the tendency to fire at particular frequencies, so-called resonators

Page 8: Music therapy my taik (2)

Oscillatory activity can also be observed in the form of sub threshold membrane potential oscillations (i.e. in the absence of action potentials).[9] If numerous neurons spike in synchrony, they can give rise to oscillations in local field potentials (LFPs)

Page 9: Music therapy my taik (2)

The functions of neural oscillations are wide ranging and vary for different types of oscillatory activity. Examples are the generation of rhythmic activity such as a heartbeat and the neural binding of sensory features in perception, such as the shape and color of an object. Neural oscillations also play an important role in many neurological disorders, such as excessive synchronization during seizure activity in epilepsy or tremor in patients with Parkinson's disease. Oscillatory activity can also be used to control external devices in brain-computer interfaces, in which subjects can control an external device by changing the amplitude of particular brain rhythmics

Page 10: Music therapy my taik (2)

Neurons generate action potentials resulting from changes in the electric membrane potential. Neurons can generate multiple action potentials in sequence forming so-called spike trains. These spike trains are the basis for neural coding and information transfer in the brain. Spike trains can form all kinds of patterns, such as rhythmic spiking and bursting, and often display oscillatory activityMicroscopic

Page 11: Music therapy my taik (2)
Page 12: Music therapy my taik (2)

Alpha waveAlpha waves are neural oscillations in the frequency range of 8–13 Hz arising from synchronous and coherent

predominantly originate from the occipital lobe during wakeful relaxation with closed eyes.

Page 13: Music therapy my taik (2)

The second occurrence of alpha wave activity is during REM sleep. As opposed to the awake form of alpha activity, this form is located in a frontal-central location in the brain

Page 14: Music therapy my taik (2)

Delta waveA delta wave is a high amplitude brain wave with

a frequency of oscillation between 0–4 hertz.

usually associated with the deepest stages of sleep (3 NREM), also known as slow-wave sleep (SWS), and aid in characterizing the depth of sleep

Delta waves can arise either in the thalamus or in the cortex. When associated with the thalamus

Delta activity stimulates the release of several hormones, including growth hormone releasing hormone GHRH and prolactin (PRL). GHRH is released from the hypothalamus, which in turn stimulates release of growth hormone from the pituitary.

Page 15: Music therapy my taik (2)

Theta rhythm

Cortical theta rhythms" are low-frequency components of scalp EEG, usually recorded from humans

in the 4–7 Hz range, regardless of their source. Cortical theta is observed frequently in young children. In older children and adults, it tends to appear during meditative, drowsy, or sleeping states, but not during the deepest stages of sleep

Page 16: Music therapy my taik (2)

mu waverepeat at a frequency of 8–13 Hz and are most prominent when the body is physically at rest

Mu waves are thought to be indicative of an infant’s developing ability to imitate. This is important because the ability to imitate plays a vital role in the development of motor skills, tool use, and understanding causal information through social interaction

Page 17: Music therapy my taik (2)

The right fusiform gyrus, left inferior parietal lobule, right anterior parietal cortex, and left inferior frontal gyrus are of particular interest

Page 18: Music therapy my taik (2)

Beta waveBeta wave, or beta rhythm, is the term used to designate the frequency range of human brain activity between 12 and 30 Hz (12 to 30 transitions or cycles per second). Beta waves are split into three sections: Low Beta Waves (12.5-16 Hz, "Beta 1 power"); Beta Waves (16.5–20 Hz, "Beta 2 power"); and High Beta Waves (20.5-28 Hz, "Beta 3 power").[1] Beta states are the states associated with normal waking consciousness

Page 19: Music therapy my taik (2)

Low amplitude beta waves with multiple and varying frequencies are often associated with active, busy, or anxious thinking and active concentration.[2]

Over the motor cortex beta waves are associated with the muscle contractions that happen in isotonic movements and are suppressed prior to and during movement changes.[3] Bursts of beta activity are associated with a strengthening of sensory feedback in static motor control and reduced when there is movement change.[4] Beta activity is increased when movement has to be resisted or voluntarily suppressed.[5] The artificial induction of increased beta waves over the motor cortex by a form of electrical stimulation called Transcranial alternating-current stimulation consistent with its link to isotonic contraction produces a slowing of motor movements

Page 20: Music therapy my taik (2)

Gamma waveA gamma wave is a pattern of neural oscillation in humans with a frequency between 25 and 100 Hz,[1] though 40 Hz is typical.[2]

According to a popular theory, gamma waves may be implicated in creating the unity of conscious perception (the binding problem

Page 21: Music therapy my taik (2)

Frequency of gamma oscillations routes flow of information in the hippocampus

Page 22: Music therapy my taik (2)

think of your brain like a radio: You’re turning the knob to find your favourite station, but the knob jams, and you’re stuck listening to something that’s in between stations. It’s a frustrating combination that makes it quite hard to get an update on swine flu while a Michael Jackson song wavers in and out. Staying on the right frequency is the only way to really hear what you’re after. In much the same way, the brain’s nerve cells are able to “tune in” to the right station to get exactly the information they need, says researcher Laura Colgin, who was the paper’s first author. “Just like radio stations play songs and news on different frequencies, the brain uses different frequencies of waves to send different kinds of information,” she says.

Page 23: Music therapy my taik (2)

Colgin and her colleagues measured brain waves in rats, in three different parts of the hippocampus, which is a key memory center in the brain. While listening in on the rat brain wave transmissions, the researchers started to realize that there might be something more to a specific sub-set of brain waves, called gamma waves. Researchers have thought these waves are linked to the formation of consciousness, but no one really knew why their frequency differed so much from one region to another and from one moment to the next.

Page 24: Music therapy my taik (2)

information is carried on top of gamma waves, just like songs are carried by radio waves. These “carrier waves” transmit information from one brain region to another. “We found that there are slow gamma waves and fast gamma waves coming from different brain areas, just like radio stations transmit on different frequencies,” she says.You really can “be on the same wavelength”

Page 25: Music therapy my taik (2)

We investigated how gamma waves in particular were involved in communication across cell groups in the hippocampus. What we found could be described as a radio-like system inside the brain. The lower frequencies are used to transmit memories of past experiences, and the higher frequencies are used to convey what is happening where you are right now.”

Page 26: Music therapy my taik (2)

If you think of the example of the jammed radio, the way to hear what you want out of the messy signals would be to listen really hard for the latest news while trying to filter out the unwanted music. The hippocampus does this more efficiently. It simply tunes in to the right frequency to get the station it wants. As the cells tune into the station they’re after, they are actually able to filter out the other station at the same time, because its signal is being transmitted on a different frequency.

Page 27: Music therapy my taik (2)
Page 28: Music therapy my taik (2)