Paul Isaacs' Blog

Autism from the inside

Visual Perceptual Disorders, Visual Agnosias, Motion Perception & Tinted Lenses

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Me Looking to SidePlease note – this is from a personal perspective of visual perceptual issues 

Eye Tracking 

I met a lady at an autism conference this year who has expertise in sensory integration I described to her how I “see” the world and access it – she said there is a simple test it involves a pen at the mid-line of your focus and vision as she moves the pen she asks me to track the pen my eyes darted and had to “re-focus” as I could not follow the movement properly and process the visuals either.

Visual Perception Disorders 

This would also make sense of why I see things in pieces (simultagnosia), problems processing faces (prosopagnosia), integrating visual information, visual semantic recognition (semantic agnosia). I found this revelation very interesting and informative.

Cortical Visual Impairment/Disorder Article 

Not all types of visual deficits caused by CVI will affect visual acuity. For example, in cortical visual dysfunction (CVD)16, the predominant visual deficit is not visual acuity loss, but rather disturbances in visual perception and integration. In higher-functioning children with CVI or CVD, specific visual disorders such as agnosias may be diagnosed. These include cerebral motion blindness or cerebral akinetopsia (the inability to perceive moving targets), simultanagnosia (the inability to focus on more than one visual object at a time), central achromatopsia16 (color desaturation), prosopagnosia (difficulty in recognizing faces), topographic agnosia (problems with orientation; see section on rehabilitation), and astereocognosis (difficulty with depth perception)17. Thus, although not all children with CVD have associated CVI, certain children with CVI (with loss of visual acuity) may show signs of CVD

“The most common cause of CVI is an hypoxic-ischemic injuryl-3,10,19,20. At least 60% of children with neonatal hypoxic-ischemic encephalopathy have cerebral visual impairment12. Hypoxia (lack of oxygen) or ischemia (tissue death due to loss of blood flow, and thus oxygen deprivation) in the preterm baby leads to a characteristic injury of the brain, namely periventricular leukomalacia (PVL)21,22, which can be detected by MRI.”

Originally appeared in Developmental Medicine & Child Neurology 2001, 43: 56-60

Smith-Kettlewell Eye Research Institute

Me & Teddy

        Me a 6 Months Old

This would make sense of the the following visual perceptual issues I have

  • Akinetophsia (motion blindness) – I believe I could have this as a result of simultagnosia (a problem with visually processing integrating the whole picture) this can lead to a “juddering” effect with my vision
  • Simultagnosia (object blindness) – “seeing” things in “bits” and or “fragments” not being able to integrate the pieces into meaningful chunks this could also be considered a form of context blindness.
  • Prosopagnosia (face blindness) – Not being able to recognise a person by their face this can lead to the persons using other forms of “recognition” such as voice, patterns of movement, placement, touching, sniffing hair, name tags etc.

What Has Helped?

From a personal perspective tinted lenses have had a great impact on how I process visual information and integrate it. The lenses have also  helped with

  • Body posture
  • Movement of my legs (not so “heavy footed”)
  • Reading and writing (dyslexia and dycalculia)
  • Light sensitivity (sensory integration disorder)
  • Eye contact
  • Concentration and focus
  • Integrating visual perceptual information (even if I don’t understand the semantics/meanings this still helps)

Remember All Autism “Fruit Salads” Are Different 

That also includes not only what the fruit salad is made up of but also the origins that made them.

What Is Autism? Blog Donna Williams 

Paul Isaacs Adult With Autism 2014

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Author: Paul Isaacs

Paul was branded as a “naughty & difficult child” at school. He was classically autistic and non-verbal due to speech articulation difficulties. He had complex sensory issues and appeared both deaf and blind. He gained functional speech around the age of 7 or 8 years old. He went through the mainstream school system with no additional help or recognition of his autism. Consequently, he did not achieve his academic or his social potential and had very low self-esteem. At age 11, Paul was referred to the children’s mental health service with childhood depression where he was regarded as “developmentally underage” and having speech problems. As an adult, Paul had a string of unsuccessful jobs, and his mental health suffered. He developed both Borderline and Schizotypal Personality Disorders in early 2007. He was referred to mental health services and misdiagnosed with “Asperger traits with a complex personality”, which did not satisfy Paul or his family. A local autism organisation put Paul in touch with an experienced psychiatrist, who diagnosed him with Autism at 24 years old. In 2012 Paul was also diagnosed with Scotopic Sensitivity Syndrome by an Irlen Consultant who confirmed that he also had face, object and meaning blindness – conditions which Paul describes eloquently in his speeches and training sessions. He also has dyslexia, dyscalculia and also a dissociative disorder. Having started working as an local autism organisation as a public speaker in 2010, Paul joined their mission to promote autism awareness. His hope is that others will not have to suffer as he did. Now also a core member of our Training Team, Paul continues to enhance true understanding of autism at every opportunity. Paul has released and published 5 books on the subject of autism published by Chipmunka publishing and has contributed to other books too. Having overcome many challenges to achieve the success that he now enjoys, Paul’s message is that Autism is a complex mix of ability and disability. He firmly believes that every Autistic person should have the opportunity to reach their potential and be regarded as a valued member of society. Apart from autism related blogs Paul also write about movies, fashion, art and anything that is of interest. As of August 2015 Paul now works as a freelance speaker, training and consultant in and around the Oxfordshire & Buckinghamshire area. If you are interested please contact him via email at staypuft12@yahoo.co.uk

One thought on “Visual Perceptual Disorders, Visual Agnosias, Motion Perception & Tinted Lenses

  1. Thanks for sharing! Hope you don’t mind me sharing any of your writing.

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