Questions and Answers
What is the most severe form of intellectual disability caused by maternal alcohol consumption during pregnancy?
Which of the following is NOT a symptom of Fetal Alcohol Syndrome?
What structural change occurs in the brain due to Fetal Alcohol Syndrome?
How does alcohol exposure during pregnancy primarily affect brain development?
Signup and view all the answers
Which cognitive condition is considered a learning disability when only one cognitive domain is affected?
Signup and view all the answers
What is a common behavioral characteristic seen in individuals with Fetal Alcohol Syndrome?
Signup and view all the answers
What is a key characteristic of dyslexia?
Signup and view all the answers
Which of the following accurately defines dyslexia?
Signup and view all the answers
What may be deficient in individuals with dyslexia that affects phonological awareness?
Signup and view all the answers
What is one of the main characteristics required for diagnosing Autism Spectrum Disorder?
Signup and view all the answers
What describes a common issue in dyslexia regarding language processing?
Signup and view all the answers
How does dyslexia affect reading despite a person's capabilities?
Signup and view all the answers
What role does the opposite hemisphere play in recovery from brain damage?
Signup and view all the answers
Which area is primarily affected by damage to the primary motor cortex (M1)?
Signup and view all the answers
What variable can influence the degree of recovery from traumatic brain damage?
Signup and view all the answers
What aspect besides M1, S1, and connecting pathways may be affected due to such brain damage?
Signup and view all the answers
What does the recovery of function after brain damage depend on?
Signup and view all the answers
Which of the following statements is true regarding brain function recovery?
Signup and view all the answers
What happens to the somatosensory cortex after an amputation?
Signup and view all the answers
What can cause phantom limb sensations in amputees?
Signup and view all the answers
How are sensory maps in the cortex maintained?
Signup and view all the answers
What is cross-modal plasticity in the context of the cortex?
Signup and view all the answers
What phenomenon may occur due to systematic changes in sensory input?
Signup and view all the answers
Which of the following is an example of brain plasticity?
Signup and view all the answers
Which factor is crucial for the maintenance of sensory maps in the cortex?
Signup and view all the answers
What is a potential consequence of losing a limb regarding the sensory cortex?
Signup and view all the answers
What defines true recovery in the context of rehabilitation?
Signup and view all the answers
Which type of recovery typically has a shorter window of time?
Signup and view all the answers
What is the Kennard principle associated with?
Signup and view all the answers
What does the crowding hypothesis suggest about children with early brain damage?
Signup and view all the answers
Which of the following best describes fluid intelligence as it relates to aging?
Signup and view all the answers
What cognitive ability often improves with aging?
Signup and view all the answers
What is a potential outcome of early left-hemisphere damage?
Signup and view all the answers
What common misconception about interventions for stroke recovery is incorrect?
Signup and view all the answers
What does the general decline viewpoint suggest about aging?
Signup and view all the answers
What factor may cause worse long-term consequences from early brain damage?
Signup and view all the answers
Study Notes
Fetal Alcohol Spectrum Disorders
- Intellectual disabilities arise from maternal alcohol consumption during pregnancy.
- Severity varies along a continuum, with Fetal Alcohol Syndrome (FAS) being the most severe.
Fetal Alcohol Syndrome (FAS)
- Symptoms include hyperactivity, poor impulse control, social and emotional difficulties, learning and memory issues, and executive dysfunction.
- Physical manifestations: slowed growth, facial and cranial abnormalities.
- Brain structural changes: reduced gray matter volume, altered white-matter development, particularly affecting frontal lobe connections throughout childhood and adolescence.
Dyslexia
- Identified as a specific reading disability; significant difficulty in reading despite appropriate training and intelligence.
- Primarily characterized by phonological understanding deficits: struggle to connect letters with sounds and decode words into phonemes.
- Potential issues with perceptual mechanisms essential for phonological awareness and communication among sensory and language regions.
Autism Spectrum Disorder (ASD)
- Diagnosis requires meeting two main criteria: impairment in social interaction across contexts.
- Demonstrates variability in behavioral manifestations, requiring a nuanced understanding for effective diagnosis and support.
Brain Plasticity in Adulthood
- The somatosensory cortex can reorganize following amputation, with areas previously assigned to the lost limb becoming responsive to adjacent body parts.
- Maps in sensory cortex rely on ongoing sensory input; systematic input changes can lead to remapping and phantom sensations in amputees.
Cross-Modal Plasticity
- Cortex regions can adapt for different functions; areas dedicated to one purpose may be repurposed for another, including compensation by regions in the opposite hemisphere.
Recovery of Function
- Damage to primary motor areas affects sensory and premotor cortices, altering inter-regional connectivity.
- Recovery from brain damage varies among individuals, with physical and cognitive therapies playing key roles.
Recovery vs. Compensation
- True recovery involves restoring original function, while compensation refers to finding alternative methods to complete tasks.
- The recovery window is shorter compared to the period for compensation, with true recovery primarily achievable within the first few months post-injury.
Interventions to Promote Recovery
- Specific training programs, such as physical therapy for motor issues post-stroke, emphasis on repetitive limb use or speech enhancement.
- Stimulation methods, including Transcranial Magnetic Stimulation (TMS) and Transcranial Direct Current Stimulation (tDCS), target damaged hemispheres or inhibit opposite ones to reduce competitive interference.
Kennard Principle
- Suggests earlier damage to the brain results in better recovery outcomes.
- Evidence indicates early left-hemisphere damage may not lead to aphasia but might affect phonology and syntax; early right-hemisphere damage can cause spatial cognition difficulties similar to those in adults.
Crowding Hypothesis
- Children experiencing early brain damage may show improved recovery, but later developmental demands can reveal deficits as they tackle more complex tasks.
- Intact brain regions must assume roles originally managed by damaged areas, potentially leading to cognitive overcrowding.
Cognitive Changes with Aging
- General decline hypothesis posits all cognitive abilities deteriorate with age, attributed to reduced mental resources or slowed processing.
- Reality is selective decline: fluid intelligence diminishes while crystallized intelligence remains stable; emotional regulation tends to improve.
- Greater cognitive decline observed in frontal and temporal regions compared to other areas.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Explore the impact of maternal alcohol consumption during pregnancy on fetal development. This quiz covers the continuum of severity for Fetal Alcohol Spectrum Disorders, with a focus on the most severe form, fetal alcohol syndrome (FAS). Test your knowledge on this crucial topic in cognitive neuroscience.
