Health and Neurological Disorders

Dyslexia is a learning disorder that primarily affects reading fluency and accuracy. The term 'word blindness' accurately captures this condition where individuals struggle to recognize and process written words despite normal intelligence and vision.

The correct answer is 'loss of speech' because aphasia is a medical condition characterized by partial or total loss of the ability to understand or express language, usually caused by brain damage. 'Loss of memory' is amnesia, 'loss of eyesight' is blindness, and 'loss of hearing' is deafness - these are entirely different conditions.

Defects typically fall into three categories: WRONG (incorrect functionality), MISSING (absent functionality), and EXTRA (unintended features). Option D 'All the above' correctly includes all three categories. This classification helps in defect analysis and prevention.

Stuttering manifests as multiple fluency disruptions: sound repetitions ('l-l-l-look'), prolongations ('lllllook'), and pauses (filled 'um' or unfilled silences). All these are characteristic features, making 'All of the above' correct.

Dyslexia is a Specific Learning Disability characterized by difficulties with accurate and/or fluent word recognition and poor spelling and decoding abilities. Mental Retardation (now called Intellectual Disability) is not a learning disability but rather a condition affecting general intellectual functioning. ADHD is a neurodevelopmental disorder affecting attention and impulse control, while Autistic spectrum disorders are pervasive developmental disorders affecting social communication and behavior.

Autistic spectrum disorders (ASD) are classified as Developmental Disorders in DSM-5, characterized by persistent deficits in social communication and interaction, along with restricted, repetitive patterns of behavior. ADHD (A) is a Neurodevelopmental Disorder but not specifically classified as a Developmental Disorder in the same category. Dyslexia (B) is a Specific Learning Disorder, not a Developmental Disorder. Mental Retardation (C), now called Intellectual Disability, is a Neurodevelopmental Disorder but is distinct from Developmental Disorders classification.

Mental Retardation (now termed Intellectual Disability or Intellectual Developmental Disorder) is characterized by significant limitations in both intellectual functioning and adaptive behavior. Dyslexia is a learning disability affecting reading, not an intellectual disability. ADHD is a neurodevelopmental disorder affecting attention and executive functioning. Autistic spectrum disorders involve social communication deficits and restricted behaviors, but many individuals with ASD have average or above-average intelligence, so it is not classified as an intellectual disability.

Expressive Language Disorder involves difficulties in verbal expression, and ALL these symptoms can occur: limited vocabulary and speech output (A), difficulty learning new words (B), and word-finding problems where the person struggles to retrieve the right word (C). Since the question asks 'may occur' and all three are valid symptoms, 'All of the above' is correct. This disorder affects language production while comprehension remains relatively intact.

Phonological disorder involves difficulty producing specific speech sounds appropriately. Physical causes include hearing impairment (A), cleft palate (B), and cerebral palsy (D) which can all affect speech production. 'Small frontal lobes' (C) is NOT a recognized physical cause of phonological disorder - this option is the correct answer because it's NOT a physical cause. Brain structure abnormalities might contribute to speech and language disorders, but 'small frontal lobes' specifically is not a documented physical etiology for phonological disorders.

Reading Disorder (Dyslexia) is diagnosed when reading achievement (accuracy, speed, comprehension) is significantly below what would be expected based on BOTH chronological age AND measured intelligence (IQ). This discrepancy-based definition ensures that reading difficulties are not simply due to low intelligence or inadequate schooling. Option C (schooling experience) is not part of the diagnostic criteria - the key is the discrepancy between actual reading ability and expected ability given age and cognitive capacity.

Dyscalculia is the specific learning disability affecting mathematical ability, characterized by difficulty understanding numbers, learning how to manipulate numbers, performing mathematical calculations, and fact retrieval. Dyslexia (B) affects reading. Dyspraxia (A) affects motor coordination. Dysphasia (D) affects language production and comprehension. The prefix 'dys-' means difficulty, and '-calculia' refers to calculation.

The cerebellum coordinates voluntary movement, balance, and posture. Damage causes ataxia - loss of muscle coordination, tremors, and balance problems. It doesn't control vital functions like heart rate (medulla) or hearing (temporal lobe), and isn't primarily involved in emotional response.

It is a case of loss of memory and capability of judgement as well as general physical impairment. It is caused by the augmentation of amyloid protein plaques in the brain resulting in the degeneration of neurons.

Insomnia is characterized by difficulty falling asleep or staying asleep, resulting in poor sleep quality. The question describes waking several times and trouble returning to sleep, which is maintenance insomnia. Narcolepsy involves sudden sleep attacks, sleep apnea involves breathing interruptions, and somnambulism is sleepwalking.

They have a much greater chance than average of having epilepsy, hypothyroidism, crossed eyes, cataracts, heart defects, hernias, a marked susceptibility to respiratory infections such as pneumonia, and childhood leukemia.