Can be defined as a dense loss of memory for recent events but with preserved intelligence and personality ,memory can be either totally or partially lost according to the extent of damage that was caused .

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By Zainab Muhammed Ali
Second stage

2. 
 Can be defined as a dense loss of memory for recent events
but with preserved intelligence and personality ,memory
can be either totally or partially lost according to the extent
of damage that was caused
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Amnesia?

3. 
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The extend of lost memories

4. 
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Types and storage of memory

5. 
 French psychologist Theodule Armand Ribot
(Ribot’s law)
 Patient H.M
 Patient R.B
 Patient G.D
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History of amnesia

6. 
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Clinical presentation of an
amnesic patient
.
 While some forms of memory are devastated other
forms may be relatively spared
 Patients suffer from learning new information
 A patients may suffer from confabulation
 a patient may suffer from other associated
neurological problems
 There may be also problems with the short term
memory

7. 
 is a form of acute memory loss as temporal yet
almost total disruption of short term memory
 A person has no signs of impaired cognitive function
but recalls only the last few moments of
consciousness
 Tends to occur in middle age or elderly patients
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Specific forms of amnesia
Transients global amnesia

8. 
 It is the inability of adults to recall episodic
memories before the age of 2-4 years ,as well as the
period before age 10 of which adults retain fewer
memories than might otherwise be expected given
the passage of time
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Specific forms of amnesia
Infantile amnesia

9. 
 As many as two third of older persons experience
mild difficulties in recalling names ,numbers, and
other facts termed “benign senescent forgetfulness
 By the year 2030 ,the proportion of our population
older than 65 will have increased from its present
to 20%
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Specific forms of amnesia
Age related memory changes

10. 
 Is a state of confusion following a traumatic brain
injury.
 The patient is unable to remember the events after
the injury.
 Amnesia for identity, place and time.
 when Post traumatic amnesia is resolved the
consciousness remains clouded due to associated
confusion
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Specific forms of amnesia
Post traumatic amnesia

11. 
 Amnesic disorder caused by thiamine deficiency.
 Usually associated with chronic ingestion of alcohol
 Short term memory remains normal, but the patient
have difficulty to recall a past story, or with
unrelated words as well as complicated patterns
 It may be related to bilateral degeneration of the
dorso-medial thalamic nuclei.
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Specific forms of amnesia
Korsakoff’s syndrome

12. 
 It is a rare but probably underdiagnosed
neurological condition which manifests as relatively
brief and generally recurring episodes of amnesia
 Caused by underlying temporal lobe epilepsy
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Specific forms of amnesia
Transient epileptic amnesia

13. 
 Alcohol blackout
 Drug induced amnesia
 Brain tumour
 Post encephalitic amnesia
 Source amnesia
 Cerebrovascular disease
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Specific forms of amnesia
others

14. 
 Cognitive behaviour therapy
 Treatment of the underlying cause
 Treatment of concomitant psychiatric illness
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Treating amnesia

15. 
 Amnesia is an organic memory loss condition caused
by brain damage to memory related areas of the
brain
 There are two types of memory
 The extent of the lost memory differs
 We can identify specific forms of amnesia :infantile ,
age related ,korsakoff’s syndrome …etc
 Amnesia usually resolve itself with out treatment
although sometimes treatment would be necessary
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In summary

16. 
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