What is Face Blindness? Causes, Diagnosis & More - PowerPoint PPT Presentation

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What is Face Blindness? Causes, Diagnosis & More

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Face blindness, also referred to as prosopagnosia, is a nervous disorder that is characterized by the person's inability to acknowledge familiar faces. – PowerPoint PPT presentation

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Title: What is Face Blindness? Causes, Diagnosis & More


1
What is Face Blindness? Causes, Diagnosis More
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2
  • What is Face Blindness?

Face blindness, also referred to as
prosopagnosia, is a nervous disorder that is
characterized by the person's inability to
acknowledge familiar faces. When watching a face,
people with face blindness generally understand
that they're viewing a face however, they find
it difficult to identify the particular
individuals.
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3
  • What is Face Blindness?

People suffering from face blindness may have
trouble identifying a loved one or sometimes even
themselves when they look into a mirror. There
are two forms of impaired facial recognition
developmental, estimated to occur in as many as 1
in every 50 people, and acquired, which is a rare
case.
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4
  • What is Face Blindness?

Individual experiences can vary depending on the
face blindness symptoms. Some people with face
blindness cannot easily identify facial
characteristics they can only see a blurred
image of somebodys face.
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5
  • What is Face Blindness?

Other people who have face blindness can identify
facial expressions with clarity, but they cannot
associate the faces that they see with known
individuals, like friends, relatives, or even
famous people. This variety is generally known as
associative prosopagnosia.
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6
  • What Causes Face Blindness?
  • Face blindness has never been proven to have a
    single cause, but scientists believe it is linked
    to neuroanatomical defects. The disorder is
    typically diagnosed when an individual does not
    recognize faces in spite of unimpaired vision,
    memory, and intelligence. However, some people
    may not realize they are face blind until they
    experience significant difficulties in daily life.

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7
  • What Causes Face Blindness?
  • One of the most common types of face blindness is
    developmental prosopagnosia, also known as
    acquired prosopagnosia. This condition is caused
    by brain damage, typically to the fusiform gyrus
    or occipital cortex, which results in an impaired
    ability to recognize familiar faces.

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8
  • What Causes Face Blindness?
  • This type of face blindness typically develops
    late in life and results from damage sustained
    during a stroke or cranial nerve injury, such as
    Bell's palsy. Some cases could be due to genetic
    abnormalities (familial cases), or events that
    occur during fetal development.

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9
  • What Causes Face Blindness?
  • Developmental prosopagnosia face blindness can
    also be part of the autism spectrum disorders,
    which suggests a link between this autosomal
    dominant condition and other social cognitive
    processes such as the theory of mind (the ability
    to attribute mental states to others). There are
    some books and several articles available on this
    topic. You can also get more information on your
    smartphone when you search on Google.

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10
  • Face Blindness Treatment
  • There are no formal diagnostic criteria to test
    face blindness. The normal diagnosis that is
    followed typically begins with an assessment of
    the individuals history, and a complete physical
    examination. An exam typically involves a range
    of tests, such as the Cambridge Face Memory Test
    (CFMT).

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11
  • Face Blindness Treatment
  • Individuals may be asked to memorize and later
    identify faces they have never seen before. They
    may also be asked to find similarities between
    different faces, or estimate someones age or
    facial expression.

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12
  • Face Blindness Treatment
  • Physical examination should always involve the
    assessment of visual acuity, which measures the
    clarity and sharpness of ones vision and memory.
    In cases where the patient has acquired
    prosopagnosia, further diagnostic testing may be
    required in order to identify the actual
    underlying causes.

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13
  • Face Blindness Treatment
  • There are no specific medical interventions or
    face blindness cure therefore, treatment is
    aimed at improving recognition abilities.
    Learning adaptation techniques, such as trying to
    recognize others by remembering identifying
    features other than faces, can help some
    individuals with face blindness.

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14
  • Face Blindness Treatment
  • However, this approach may not always be
    practical because some changes to these
    attributes can cause confusion for those with the
    condition.

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15
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