Neuropsychology Overview Quiz

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Questions and Answers

What is synaptogenesis?

  • The formation of synapses between neurons (correct)
  • The insulation of nerve fibers
  • The reduction of brain connections
  • The process of neuron death

What happens during myelogenesis?

  • Myelin is formed around nerve fibers (correct)
  • Connections between neurons are increased
  • Neurons are pruned
  • Synapses are eliminated

How does the number of neurons change from childhood to adolescence?

  • It fluctuates dramatically each year
  • It increases steadily throughout childhood
  • It remains constant until adulthood
  • It reaches a peak early and then declines (correct)

What is the primary goal of neuropsychology?

<p>To understand psychological processes related to brain function (A)</p> Signup and view all the answers

Which of the following is NOT a focus of cognitive neurosciences?

<p>Rehabilitation of psychological disorders (B)</p> Signup and view all the answers

What is the difference between experimental and clinical neuropsychology?

<p>Experimental studies normal cognitive functioning, clinical focuses on diagnosis and rehabilitation (C)</p> Signup and view all the answers

What characterizes research methods in neuropsychology?

<p>They often include single case studies to model normal functioning (B)</p> Signup and view all the answers

Which of the following fields does neuropsychology overlap with?

<p>Psychology, neurology, and psychiatry (A)</p> Signup and view all the answers

What is the primary function of neurons in the nervous system?

<p>To convey electrical impulses and communicate via synaptic transmission (C)</p> Signup and view all the answers

Which type of glia cell is responsible for forming the myelin sheath?

<p>Oligodendrocyte (A)</p> Signup and view all the answers

Which of the following correctly describes the Central Nervous System (CNS)?

<p>Composed of the brain and spinal cord (A)</p> Signup and view all the answers

What is the role of afferent neurons in the nervous system?

<p>To relay sensory information towards the brain (C)</p> Signup and view all the answers

Which structure serves as the site for decussation in the nervous system?

<p>Brainstem (B)</p> Signup and view all the answers

The appearance of neurons with myelin sheaths is commonly referred to as what?

<p>White matter (B)</p> Signup and view all the answers

What is the primary function of cerebrospinal fluid (CSF)?

<p>To protect and cushion the brain and spinal cord (D)</p> Signup and view all the answers

Which glial cell type is involved in removing dead or damaged tissue within the nervous system?

<p>Microglia (C)</p> Signup and view all the answers

What does cognitive rehabilitation primarily rely on?

<p>The assumption of brain plasticity (D)</p> Signup and view all the answers

What is neural sprouting?

<p>Extension of existing neurons' axons and dendrites (A)</p> Signup and view all the answers

Which of the following best describes long-term potentiation (LTP)?

<p>A persistent strengthening of synapses based on activity patterns (D)</p> Signup and view all the answers

What role does neurogenesis play in structural neuroplasticity?

<p>It facilitates the growth of new neurons (A)</p> Signup and view all the answers

How do compensatory techniques function in cognitive rehabilitation?

<p>They utilize strategies that rely on intact cognitive skills (B)</p> Signup and view all the answers

What is the primary goal of physiotherapy as described?

<p>To restore lost body functions (D)</p> Signup and view all the answers

Which of the following is considered a resource of positive plasticity?

<p>Errorless learning (A)</p> Signup and view all the answers

What best describes negative plasticity?

<p>Maladaptive changes that lead to dysfunction (C)</p> Signup and view all the answers

Which cognitive function is closely related to the dorsal pathway?

<p>Working memory (B)</p> Signup and view all the answers

What is a defining characteristic of optic ataxia?

<p>Difficulty in reaching for objects (D)</p> Signup and view all the answers

Which symptom is NOT associated with Balint-Holmes Syndrome?

<p>Color recognition deficits (A)</p> Signup and view all the answers

What do patients with simultanagnosia struggle with?

<p>Perceiving more than one object at a time (D)</p> Signup and view all the answers

Which of the following is a symptom of Gerstmann’s Syndrome?

<p>Agraphia (C)</p> Signup and view all the answers

What distinguishes the dorsal from the ventral form of simultanagnosia?

<p>Ability to distinguish single elements but not the whole picture (B)</p> Signup and view all the answers

Which of the following best describes anosognosia in Balint-Holmes Syndrome?

<p>Unawareness of having the deficit (C)</p> Signup and view all the answers

Gerstmann’s Syndrome can be characterized by which of the following deficits?

<p>Left/right disorientation (C)</p> Signup and view all the answers

What is the primary characteristic of Broca's aphasia?

<p>Marked difficulty in producing coherent speech (B)</p> Signup and view all the answers

Which type of words are typically omitted in Broca's aphasia?

<p>Function words such as prepositions and articles (C)</p> Signup and view all the answers

What does the term 'telegraphic speech' refer to in relation to Broca's aphasia?

<p>Non-fluent speech with omitted function words (D)</p> Signup and view all the answers

Which of the following is NOT a symptom of Broca's aphasia?

<p>Complete paralysis of facial muscles (D)</p> Signup and view all the answers

Which statement is true about patients with Broca's aphasia?

<p>They typically maintain good comprehension of language. (A)</p> Signup and view all the answers

Which of the following conditions most commonly leads to aphasia?

<p>Stroke (A)</p> Signup and view all the answers

What is a significant aspect of Broca's aphasia regarding language function?

<p>The presence of a speech programming deficit (C)</p> Signup and view all the answers

What is NOT a characteristic of brain lesions that cause aphasia?

<p>They exclusively result from strokes (A)</p> Signup and view all the answers

What is the role of the phonological input lexicon?

<p>It translates acoustic representations into semantic representations. (B)</p> Signup and view all the answers

What is meant by 'anomia' in lexicon organization?

<p>Difficulty in retrieving words. (D)</p> Signup and view all the answers

Which of the following factors contributes to a word's resistance to errors?

<p>Word frequency. (A)</p> Signup and view all the answers

What type of error is described by using a word without any relation of meaning, such as saying 'tablecloth' for 'telephone'?

<p>Verbal paraphasia. (D)</p> Signup and view all the answers

How does word frequency affect the cognitive organization of lexicon?

<p>It affects the number of connections and features among words. (C)</p> Signup and view all the answers

Which type of lexical error involves replacing a target word with one from the same category, such as saying 'car' for 'van'?

<p>Categorial error. (A)</p> Signup and view all the answers

What characterizes anomic latency?

<p>Delay in recalling a target word. (B)</p> Signup and view all the answers

What happens to connection strengths of words during early learning?

<p>They change significantly before becoming smaller. (B)</p> Signup and view all the answers

Flashcards

Neurons

Specialized cells responsible for transmitting electrical impulses throughout the nervous system.

Glia Cells

Cells that support and protect neurons, providing structure and aiding in communication.

Myelin Sheath

A fatty substance that wraps around axons, increasing the speed of nerve impulse transmission.

Central Nervous System (CNS)

The brain and spinal cord, the central control center of the nervous system.

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Peripheral Nervous System (PNS)

The nervous system outside the brain and spinal cord, responsible for carrying signals to and from the body.

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Skeletal Nervous System

The part of the PNS that controls voluntary muscle movements.

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Autonomic Nervous System

The part of the PNS that controls involuntary bodily functions like heart rate and digestion.

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Afferent/Sensory Neurons

Nerve impulses that travel towards the brain, carrying sensory information.

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Brain Plasticity

The ability of the brain to change its structure and function in response to learning, experience, and injury.

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Neurogenesis

The creation of new neurons; a form of structural brain plasticity.

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Sprouting

Formation of new connections between neurons, expanding the network.

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Rerouting

The process of establishing new pathways after a stroke or injury.

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Long-Term Potentiation (LTP)

A lasting enhancement of synaptic strength; a form of functional brain plasticity.

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Long-Term Depression (LTD)

A lasting weakening of synaptic strength; a form of functional brain plasticity.

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Cognitive Remediation

A type of cognitive rehabilitation that aims to restore lost cognitive abilities.

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Compensatory Techniques

A type of cognitive rehabilitation that helps people compensate for cognitive deficits.

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Synaptogenesis

The formation of connections between neurons, crucial for learning and brain development. This process is influenced by experiences and stimuli, shaping the brain's wiring.

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Neural Pruning

A process where excess neurons and synapses are eliminated, refining neural circuits for optimal cognitive function. It's like cleaning up your brain's network to make it more efficient.

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Myelination

The process of forming a myelin sheath, a fatty substance that insulates nerve fibers, speeding up signal transmission and enhancing brain communication.

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Neuropsychology

The branch of psychology that focuses on the relationship between brain structures and systems, and psychological processes.

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Cognitive Neurosciences

The study of the neuro-functional organization of the mind and mental processes, using various methods such as animal studies, cognitive psychology, and neuropsychology.

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Clinical Neuropsychology

Studies the cognitive, behavioral, and emotional-motivational disorders related to brain lesions or dysfunctions. It involves diagnosis, rehabilitation, and understanding the impact of brain damage on the mind.

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Experimental Neuropsychology

Experimental investigations into the neuro-functional organization of the mind and its neural correlates related to specific cognitive (dys)functions.

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The Study of Single Cases

The study of individual cases to understand normal cognitive functioning. Insights from these cases can shed light on how the brain works under normal conditions.

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Anomia

The difficulty of retrieving words.

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Semantic Paraphasia

A type of speech error where a word is replaced with a word that is similar in meaning.

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Verbal Paraphasia

A type of speech error where a word is replaced with a word that is unrelated in meaning.

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Categorial Paraphasia

A type of speech error where a word is replaced with a word from the same category.

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Associative Paraphasia

A type of speech error where a word is replaced with a word that is related to the target word, but not in the same category.

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Superordinate Paraphasia

A type of speech error where a specific word is replaced with a more general term.

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Subordinate Paraphasia

A type of speech error where a general word is replaced with a more specific word.

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Phonological Output Lexicon

The process of translating a concept into a spoken word.

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Affordances

The ability of objects to suggest their possible uses based on their shape, size, and other physical features, regardless of their visual characteristics like color or texture.

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Optic Ataxia

A disorder affecting visually-guided movements, making it difficult to reach for objects or copy movements accurately. This is not due to motor, sensory, visual acuity, or visual field deficits.

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Balint-Holmes Syndrome

A syndrome caused by damage to both the occipital and parietal lobes, characterized by optic ataxia, simultanagnosia, oculomotor apraxia, and anosognosia.

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Simultanagnosia

Inability to perceive more than one object at a time; the visual field is processed piecemeal, making it impossible to understand a scene as a whole.

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Gerstmann's Syndrome

A syndrome affecting visuoperceptive abilities, characterized by finger agnosia, agraphia, acalculia, and left/right disorientation.

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Finger Agnosia

A component of Gerstmann's Syndrome where individuals have difficulty identifying their fingers, often confusing them or struggling to name them.

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Loss of Navon effect

A visual processing impairment where individuals struggle to distinguish between local and global features of objects.

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Piecemeal Visual Scanning

A visual processing impairment that prevents individuals from being able to grasp the full meaning of a complex picture, even if they recognize individual elements.

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Aphasia

A disorder affecting language abilities, like speaking or understanding, caused by brain damage. It is not due to sensory problems, like deafness, or mental confusion, just language itself.

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Syndrome

A group of symptoms that occur together and signify a specific disease or condition, not always fully understood.

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Aphasic Syndrome

A disorder characterized by specific difficulties in speaking and/or understanding language after brain injury, in individuals with fully acquired language skills.

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Aetiology

The various reasons that cause a disease or condition, often multiple factors contributing.

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Broca's Aphasia

A type of aphasia where producing coherent speech is extremely difficult, despite understanding language relatively well. People with this may have trouble finding words, using correct grammar, and speaking smoothly.

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Agrammatism

The consistent absence of function words (like 'the,' 'and,' or 'to') and grammatical endings in speech, while keeping meaning-carrying words (nouns and verbs).

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Telegraphic Speech

The name for the characteristic speech of Broca's aphasia, often described as short, telegraphic sentences that lack grammatical structure.

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Speech Programming Deficit

The inability to execute conscious speech movements, although there is no paralysis of facial or vocal muscles, suggesting an issue in planning and coordinating speech.

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Study Notes

Neurons and Glia

  • Neurons transmit electrical impulses throughout the nervous system; they communicate with other neurons or muscles via synaptic transmission.
  • A human brain contains 100-150 billion neurons.
  • Glia cells support neurons; oligodendrocytes produce myelin sheaths, increasing nerve impulse propagation speed.
  • Microglia remove dead tissue, and astrocytes regulate the transfer of nutrients & harmful substances between blood and brain.

Nervous Systems

  • Central Nervous System (CNS): composed of brain and spinal cord,
  • Peripheral Nervous System (PNS): composed of everything else, including
    • Skeletal nervous system: carries nerve impulses to voluntary muscles.
    • Autonomic nervous system: carries nerve impulses to involuntary muscles.
    • Afferent (sensory) neurons: carry impulses toward the brain.
    • Efferent (motor) neurons: carry impulses away from the brain.
  • White Matter: myelinated neurons (pink-white).
  • Grey Matter: unmyelinated neurons (gray).

The Brain

  • The brain coordinates all bodily functions and consists of four regions: cerebrum, cerebellum, brainstem, and diencephalon.
  • Somatosensation (Afferent neurons): sensory information from the body to the somatosensory cortex.
  • Motor control (Efferent neurons): motor output from the motor cortex, to innervate muscles.

Cerebrospinal Fluid (CSF)

  • Clear, colorless fluid that circulates around the CNS, allowing nutrient and chemical diffusion.
  • It protects the brain and spinal cord.

Blood Supply

  • Cerebral arteries supply oxygenated blood.
  • Cerebral veins drain deoxygenated blood.
  • The blood-brain barrier protects brain tissue from harmful blood elements while allowing passage of substances necessary for metabolic functions.

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