كل شيء عن إختبار التوفل-toefl-

The leading causes of amnesia are either physical or psychological. In

antergrade amnesia, the subject is unable to recall the events that occur after

a shock or an injury to the brain; however, past memories will not be lost. In

retrograde amnesia, the patient is capable of recalling events that occur after the

trauma; interestingly enough, information stored before the shock, is lost and

cannot be retrieved. In paraamnesia, established memories are contorted. In

psychogenic fugue, the subject may venture into a new lifestyle, trying to

repress memories which lead to trepidation. The events happening during

psychogenic fugue are non-retrievable. Nonetheless, the experiences that

happened before the onset can be recovered. Among the most popular

treatments for psychologically related amnesia are psychotherapy, the use of

drugs, and hypnosis.

Researchers in the field of animal behavior have long been interested in the

ways animals and insects communicate. The most recent findings show that

honeybees communicate mostly through “dances.”

By performing certain dance routines, the workers let the other members know

Of the location of a food source, its direction, and its distance. If the workers

spot pollen and nectar in the flowers near their hive, they do the circular dance.

On the other hand, when a food site is remote, they perform a figure-eight

waggle dance, in which the slow and fast tempo movements will inform the other

members of the distance to the food source. For instance, a slow waggle of the lower

part of the abdomen signifies a far-distance, demanding flight. Conversely, a rapid

waggle indicates a within-reach trip. Variations in the dance form exist among

different species.

The bee’s orientation on the comb is a key directional cue for other bees. In the

absence of sun light on the comb, the bees waggle moving straight up. If the

sun’s polarized light penetrates the hive, the bees can orient themselves

toward the direction of the sun’s rays.

Electroencephalograph (EEG) is a tool used for gauging and recording brain

waves. In 1929, Hans Berger, the German psychiatrist, published the results of

his experiments using the electroecenphalograph in recording human brain

waves.

Four major brain waves exist: alpha has a frequency that ranges from 8 to 14

cycles per second (cps) and is found in the occipital part of the brain. Beta

covers 14 to 30 cps. Delta wave includes frequencies that are below 5 cps. Theta

wave covers the range between 5 and 8 cps. Alpha waves are more active

during relaxation and light sleep. Nonetheless, their function is altered by deep

mental activities. Beta waves, on the other hand, appear during mental

concentration periods.

In 1935, the findings of collaborators Frederic Gibbs, William Lennox, and

Hallowelle Davis from Harvard on the use of EEG in epilepsy was published.

Since EEG poses no pain or side effects, it is broadly included as a medium for

identifying brain irregularities. The EEG is instrumental in discovering a host

of brain wave abnormalities. Persons who suffer from grand mal epilepsy have

brain wave patterns that resemble spikes, while those with petit mal epilepsy

have arch-shaped brain waves. Brain waves respond to physiological and

chemical stimuli. For instance, the use of drugs will result in low-amplitude,

high frequency brain waves. When we are asleep, the waves’ pattern changes a

few times. Dreaming frequently happens when the brain waves have high

frequency but low amplitude.

Electroencephalograph (EEG) is a tool used for gauging and recording brain

waves. In 1929, Hans Berger, the German psychiatrist, published the results of

his experiments using the electroecenphalograph in recording human brain

waves.

Four major brain waves exist: alpha has a frequency that ranges from 8 to 14

cycles per second (cps) and is found in the occipital part of the brain. Beta

covers 14 to 30 cps. Delta wave includes frequencies that are below 5 cps. Theta

wave covers the range between 5 and 8 cps. Alpha waves are more active

during relaxation and light sleep. Nonetheless, their function is altered by deep

mental activities. Beta waves, on the other hand, appear during mental

concentration periods.

In 1935, the findings of collaborators Frederic Gibbs, William Lennox, and

Hallowelle Davis from Harvard on the use of EEG in epilepsy was published.

Since EEG poses no pain or side effects, it is broadly included as a medium for

identifying brain irregularities. The EEG is instrumental in discovering a host

of brain wave abnormalities. Persons who suffer from grand mal epilepsy have

brain wave patterns that resemble spikes, while those with petit mal epilepsy

have arch-shaped brain waves. Brain waves respond to physiological and

chemical stimuli. For instance, the use of drugs will result in low-amplitude,

high frequency brain waves. When we are asleep, the waves’ pattern changes a

few times. Dreaming frequently happens when the brain waves have high

frequency but low amplitude.

Researchers in the field of animal behavior have long been interested in the

ways animals and insects communicate. The most recent findings show that

honeybees communicate mostly through “dances.”

By performing certain dance routines, the workers let the other members know

of the location of a food source, its direction, and its distance. If the workers

spot pollen and nectar in the flowers near their hive, they do the circular dance.

On the other hand, when a food site is remote, they perform a figure-eight

waggle dance, in which the slow and fast tempo movements will inform the other

members of the distance to the food source. For instance, a slow waggle of the lower

part of the abdomen signifies a far-distance, demanding flight. Conversely, a rapid

waggle indicates a within-reach trip. Variations in the dance form exist among

different species.

The bee’s orientation on the comb is a key directional cue for other bees. In the

absence of sun light on the comb, the bees waggle moving straight up. If the

sun’s polarized light penetrates the hive, the bees can orient themselves

toward the direction of the sun’s rays.

Electroencephalograph (EEG) is a tool used for gauging and recording brain

waves. In 1929, Hans Berger, the German psychiatrist, published the results of

his experiments using the electroecenphalograph in recording human brain

waves.

Four major brain waves exist: alpha has a frequency that ranges from 8 to 14

cycles per second (cps) and is found in the occipital part of the brain. Beta

covers 14 to 30 cps. Delta wave includes frequencies that are below 5 cps. Theta

wave covers the range between 5 and 8 cps. Alpha waves are more active

during relaxation and light sleep. Nonetheless, their function is altered by deep

mental activities. Beta waves, on the other hand, appear during mental

concentration periods.

In 1935, the findings of collaborators Frederic Gibbs, William Lennox, and

Hallowelle Davis from Harvard on the use of EEG in epilepsy was published.

Since EEG poses no pain or side effects, it is broadly included as a medium for

identifying brain irregularities. The EEG is instrumental in discovering a host

of brain wave abnormalities. Persons who suffer from grand mal epilepsy have

brain wave patterns that resemble spikes, while those with petit mal epilepsy

have arch-shaped brain waves. Brain waves respond to physiological and

chemical stimuli. For instance, the use of drugs will result in low-amplitude,

high frequency brain waves. When we are asleep, the waves’ pattern changes a

few times. Dreaming frequently happens when the brain waves have high

frequency but low amplitude.

The leading causes of amnesia are either physical or psychological. In

antergrade amnesia, the subject is unable to recall the events that occur after

a shock or an injury to the brain; however, past memories will not be lost. In

retrograde amnesia, the patient is capable of recalling events that occur after the

trauma; interestingly enough, information stored before the shock, is lost and

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9 thoughts on “كل شيء عن إختبار التوفل-toefl-”

1. يسلم مرورك خيوووو

2. موضوع مميز

   مشكور وبارك الله فيك

3. يسلم مرورك ..,

4. شـكــ وبارك الله فيك ـــرا لك … لك مني أجمل تحية .

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