Brain Waves - Revision history

Lisa at 04:18, 19 June 2024

2024-06-19T04:18:45Z

← Older revision		Revision as of 00:18, 19 June 2024
Line 7:		Line 7:
	Each serves a purpose to help us cope with various situations – whether it is to help us process and learn new information or help us calm down after a long stressful day. The five brain waves in order of highest frequency to lowest are as follows: gamma, beta, alpha, theta, and delta.<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>		Each serves a purpose to help us cope with various situations – whether it is to help us process and learn new information or help us calm down after a long stressful day. The five brain waves in order of highest frequency to lowest are as follows: gamma, beta, alpha, theta, and delta.<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>

	==Neural ~~Oscillaitons~~==		==Neural Oscillations==
	[[Neural Oscillations]] have been most widely studied in neural activity generated by large groups of neurons. Large-scale activity can be measured by techniques such as EEG. In general, EEG signals have a broad spectral content similar to pink noise, but also reveal oscillatory activity in specific frequency bands. The first discovered and best-known frequency band is alpha activity (7.5–12.5 Hz) that can be detected from the occipital lobe during relaxed wakefulness and which increases when the eyes are closed. Other frequency bands are: delta (1–4 Hz), theta (4–8 Hz), beta (13–30 Hz) and gamma (30–70 Hz) frequency band, where faster rhythms such as gamma activity have been linked to cognitive processing. Indeed, EEG signals change dramatically during sleep and show a transition from faster frequencies to increasingly slower frequencies such as alpha waves. In fact, different sleep stages are commonly characterized by their spectral content. Consequently, neural oscillations have been linked to cognitive states, such as awareness and consciousness.<ref>[https://en.wikipedia.org/wiki/Neural_oscillation Neural Oscillation]</ref>		[[Neural Oscillations]] have been most widely studied in neural activity generated by large groups of neurons. Large-scale activity can be measured by techniques such as EEG. In general, EEG signals have a broad spectral content similar to pink noise, but also reveal oscillatory activity in specific frequency bands. The first discovered and best-known frequency band is alpha activity (7.5–12.5 Hz) that can be detected from the occipital lobe during relaxed wakefulness and which increases when the eyes are closed. Other frequency bands are: delta (1–4 Hz), theta (4–8 Hz), beta (13–30 Hz) and gamma (30–70 Hz) frequency band, where faster rhythms such as gamma activity have been linked to cognitive processing. Indeed, EEG signals change dramatically during sleep and show a transition from faster frequencies to increasingly slower frequencies such as alpha waves. In fact, different sleep stages are commonly characterized by their spectral content. Consequently, neural oscillations have been linked to cognitive states, such as awareness and consciousness.<ref>[https://en.wikipedia.org/wiki/Neural_oscillation Neural Oscillation]</ref>

Lisa at 04:11, 19 June 2024

2024-06-19T04:11:13Z

← Older revision		Revision as of 00:11, 19 June 2024
Line 1:		Line 1:
			[[File:Brain-Frequency-Chart.jpg\|thumb\|Brain Frequency Chart]]

	At the root of all our thoughts, emotions and behaviours is the communication between [[Neurons]] within our [[Brain]]s called [[Brain Waves]]. Brain waves are produced by synchronised electrical pulses from masses of neurons communicating with each other.		At the root of all our thoughts, emotions and behaviours is the communication between [[Neurons]] within our [[Brain]]s called [[Brain Waves]]. Brain waves are produced by synchronised electrical pulses from masses of neurons communicating with each other.

Line 10:		Line 12:
	==Frequency response==		==Frequency response==
	In response to input, a neuron or neuronal ensemble may change the frequency at which it oscillates, thus changing the rate at which it spikes. Often, a neuron's firing rate depends on the summed activity it receives. Frequency changes are also commonly observed in central pattern generators and directly relate to the speed of motor activities, such as step frequency in walking. However, changes in relative oscillation frequency between different brain areas is not so common because the frequency of oscillatory activity is often related to the time delays between brain areas.<ref>[https://en.wikipedia.org/wiki/Neural_oscillation Neural Oscillation]</ref>		In response to input, a neuron or neuronal ensemble may change the frequency at which it oscillates, thus changing the rate at which it spikes. Often, a neuron's firing rate depends on the summed activity it receives. Frequency changes are also commonly observed in central pattern generators and directly relate to the speed of motor activities, such as step frequency in walking. However, changes in relative oscillation frequency between different brain areas is not so common because the frequency of oscillatory activity is often related to the time delays between brain areas.<ref>[https://en.wikipedia.org/wiki/Neural_oscillation Neural Oscillation]</ref>

	~~[[File:Brain-Frequency-Chart.jpg\|thumb\|Brain Frequency Chart]]~~

	==Alpha Waves==		==Alpha Waves==

Lisa at 04:10, 19 June 2024

2024-06-19T04:10:58Z

← Older revision		Revision as of 00:10, 19 June 2024
Line 10:		Line 10:
	==Frequency response==		==Frequency response==
	In response to input, a neuron or neuronal ensemble may change the frequency at which it oscillates, thus changing the rate at which it spikes. Often, a neuron's firing rate depends on the summed activity it receives. Frequency changes are also commonly observed in central pattern generators and directly relate to the speed of motor activities, such as step frequency in walking. However, changes in relative oscillation frequency between different brain areas is not so common because the frequency of oscillatory activity is often related to the time delays between brain areas.<ref>[https://en.wikipedia.org/wiki/Neural_oscillation Neural Oscillation]</ref>		In response to input, a neuron or neuronal ensemble may change the frequency at which it oscillates, thus changing the rate at which it spikes. Often, a neuron's firing rate depends on the summed activity it receives. Frequency changes are also commonly observed in central pattern generators and directly relate to the speed of motor activities, such as step frequency in walking. However, changes in relative oscillation frequency between different brain areas is not so common because the frequency of oscillatory activity is often related to the time delays between brain areas.<ref>[https://en.wikipedia.org/wiki/Neural_oscillation Neural Oscillation]</ref>

			[[File:Brain-Frequency-Chart.jpg\|thumb\|Brain Frequency Chart]]

	==Alpha Waves==		==Alpha Waves==

Lisa at 03:20, 12 March 2023

2023-03-12T03:20:30Z

← Older revision		Revision as of 23:20, 11 March 2023
Line 72:		Line 72:

	==See Also==		==See Also==

			[[Brain Signals]]

	[[Mind Control]]		[[Mind Control]]

Lisa: /* Theta Waves */

2017-04-16T04:38:30Z

Theta Waves

← Older revision		Revision as of 00:38, 16 April 2017
Line 65:		Line 65:
	* Optimal: Creativity, emotional connection, intuition, relaxation		* Optimal: Creativity, emotional connection, intuition, relaxation
	* Increase theta waves: Depressants<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>		* Increase theta waves: Depressants<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>


	==References==		==References==

Lisa: /* Gamma Waves */

2017-04-16T04:38:25Z

Gamma Waves

← Older revision		Revision as of 00:38, 16 April 2017
Line 54:		Line 54:
	* Optimal: Binding senses, cognition, information processing, learning, perception, REM sleep		* Optimal: Binding senses, cognition, information processing, learning, perception, REM sleep
	* Increase gamma waves: Meditation<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>		* Increase gamma waves: Meditation<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>


	==Theta Waves==		==Theta Waves==

Lisa: /* Delta Waves */

2017-04-16T04:38:18Z

Delta Waves

← Older revision		Revision as of 00:38, 16 April 2017
Line 43:		Line 43:
	* Optimal: Immune system, natural healing, restorative / deep sleep		* Optimal: Immune system, natural healing, restorative / deep sleep
	* Increase delta waves: Depressants, sleep<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>		* Increase delta waves: Depressants, sleep<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>


	==Gamma Waves==		==Gamma Waves==

Lisa: /* Beta Waves */

2017-04-16T04:38:12Z

Beta Waves

← Older revision		Revision as of 00:38, 16 April 2017
Line 32:		Line 32:
	* Optimal: Conscious focus, memory, problem solving		* Optimal: Conscious focus, memory, problem solving
	* Increase beta waves: Coffee, energy drinks, various stimulants<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>		* Increase beta waves: Coffee, energy drinks, various stimulants<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>


	==Delta Waves==		==Delta Waves==

Lisa: /* Alpha Waves */

2017-04-16T04:38:06Z

Alpha Waves

← Older revision		Revision as of 00:38, 16 April 2017
Line 21:		Line 21:
	* Optimal: Relaxation		* Optimal: Relaxation
	* Increase alpha waves: Alcohol, relaxants, some antidepressants<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>		* Increase alpha waves: Alcohol, relaxants, some antidepressants<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>


	==Beta Waves==		==Beta Waves==

Lisa at 04:37, 16 April 2017

2017-04-16T04:37:48Z

← Older revision		Revision as of 00:37, 16 April 2017
Line 20:		Line 20:
	* Too little: Anxiety, high stress, insomnia, OCD		* Too little: Anxiety, high stress, insomnia, OCD
	* Optimal: Relaxation		* Optimal: Relaxation
	* Increase alpha waves: Alcohol, relaxants, some antidepressants		* Increase alpha waves: Alcohol, relaxants, some antidepressants<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>


	==Beta Waves==		==Beta Waves==
Line 31:		Line 32:
	* Too little: ADHD, daydreaming, depression, poor cognition		* Too little: ADHD, daydreaming, depression, poor cognition
	* Optimal: Conscious focus, memory, problem solving		* Optimal: Conscious focus, memory, problem solving
	* Increase beta waves: Coffee, energy drinks, various stimulants		* Increase beta waves: Coffee, energy drinks, various stimulants<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>


	==Delta Waves==		==Delta Waves==
Line 42:		Line 44:
	* Too little: Inability to rejuvenate body, inability to revitalize the brain, poor sleep		* Too little: Inability to rejuvenate body, inability to revitalize the brain, poor sleep
	* Optimal: Immune system, natural healing, restorative / deep sleep		* Optimal: Immune system, natural healing, restorative / deep sleep
	* Increase delta waves: Depressants, sleep		* Increase delta waves: Depressants, sleep<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>


	==Gamma Waves==		==Gamma Waves==
Line 53:		Line 56:
	* Too little: ADHD, depression, learning disabilities		* Too little: ADHD, depression, learning disabilities
	* Optimal: Binding senses, cognition, information processing, learning, perception, REM sleep		* Optimal: Binding senses, cognition, information processing, learning, perception, REM sleep
	* Increase gamma waves: Meditation		* Increase gamma waves: Meditation<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>


	==Theta Waves==		==Theta Waves==
Line 64:		Line 68:
	* Too little: Anxiety, poor emotional awareness, stress		* Too little: Anxiety, poor emotional awareness, stress
	* Optimal: Creativity, emotional connection, intuition, relaxation		* Optimal: Creativity, emotional connection, intuition, relaxation
	* Increase theta waves: Depressants		* Increase theta waves: Depressants<ref>[http://mentalhealthdaily.com/2014/04/15/5-types-of-brain-waves-frequencies-gamma-beta-alpha-theta-delta/ Mental Health Daily]</ref>


	==References==		==References==