Consciousness is controlled how by brain

1. CONSCIOUSNESS
Name: RISHITA GARG
Group: FS2

2. What is consciousnes?
The presence of awareness and arousal. Awareness describes one’s
ability to assimilate content, and arousal refers to a state of
wakefulness in which one is able to interact with the environment.
Clinical definition of “being conscious” is that a person is attentive,
thinking, and deciding. When we are conscious, we are awake, alert,
vigilant, aware, and having thoughts and intentions.

3. Levels of Consciousness
•Impaired Consciousness - is a state where consciousness has been affected by damage to
the brain.
•Clouding of consciousness: Minimal reduction of wakefulness or awareness-main difficulty
attention.
• Confusion: State of impaired ability to think and reason clearly at a developmentally and
intellectually appropriate level.
•Sleep: Biologically active state with identifiable behavioral and EEG stages, with appropriate
stimulus intensity and duration sleeping person can be aroused to a normal state of
consciousness.

4. Impairment of Consciosness
● Syncope
● Seizure
● Stupor
● Coma
● Persistent vegetative state
● Minimal consciousness
● Delirium
● Akinetic mutism

5. SEIZURE
Self-limited loss of consciousness due to acute
global impairment of cerebral blood flow.
The onset is rapid, duration brief, and recovery
spontaneous and complete.
The causes of syncope can be divided into three
general categories: (1) neurally mediated syncope
(also called reflex syncope), (2) orthostatic
hypotension, (3) cardiac syncope (4) vasovagal
syncope.
Sudden unexpected loss of conscientious in a child
or adult.
The onset is sudden, duration is long maybe last for
5 min.
The type of seizures in which loss of
consciousness Occur are: (1) absence seizure
(2) tonic- clonic (3)complex partial seizure.
SYNCOPE

6. CONFUSION
Confusion is a cognitive disorder characterized by loss of the normal coherent
stream of thought or action.
This is mild stage of loss of consciousness.

7. DELIRIUM
It is a term used to describe an acute confusional state, remains a major cause
of morbidity and mortality rates.
It is describes a clouding of consciousness with reduced ability to sustain
attention to environmental stimuli.
Delirium is a fast developing type of confusion.

8. STUPOR
State of baseline unresponsiveness that requires repeated application of
vigorous stimuli to achieve arousal.
A condition of greatly dulled or completely suspended sense or sensibility
drunken stupor specifically : a chiefly mental condition marked by absence of
spontaneous movement, greatly diminished responsiveness to stimulation, and
usually impaired consciousness

9. COMA
A state of profound unconsciousness caused by disease, injury, or poison.
A state of mental or physical sluggishness
State of complete unresponsiveness to arousal, in which the patient lies with
the eyes closed.
Causes of coma: Infectious or inflammatory, Structural (Trauma) , Metabolic,
Nutritional,Toxic