Overview of Attention in Psychology

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Questions and Answers

What is the primary role of the cerebrocerebellum?

  • Detects errors in movement
  • Corrects limb positioning
  • Improves balance and posture
  • Plans and initiates movement (correct)

Which cerebellar peduncle is primarily involved in fine-tuning voluntary movements?

  • Middle cerebellar peduncle
  • Superior cerebellar peduncle (correct)
  • Inferior cerebellar peduncle
  • Lateral cerebellar peduncle

What is the function of feedback loops in adaptive motor control?

  • Perform involuntary movements automatically
  • Predict movements based on past experiences
  • Adjust movement based on sensory input and error detection (correct)
  • Initiate voluntary movements without sensory input

Which part of the motor control hierarchy is primarily responsible for involuntary movements?

<p>Spinal cord and brainstem (D)</p> Signup and view all the answers

In the context of motor control, what do agonist and antagonist muscles refer to?

<p>Primary muscle for movement and its opposing muscle (A)</p> Signup and view all the answers

Which motor pathway is responsible for fine movements?

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

What degenerative condition is characterized by the loss of dopamine in the basal ganglia?

<p>Parkinson's Disease (C)</p> Signup and view all the answers

What is the primary effect of alcohol on motor control?

<p>Impairs coordination and balance (D)</p> Signup and view all the answers

Which statement accurately describes readiness potential?

<p>It builds electrical activity before voluntary movement (D)</p> Signup and view all the answers

What is meant by reciprocal innervation in muscle control?

<p>The spinal cord coordinates both agonist and antagonist muscles (A)</p> Signup and view all the answers

What is the primary function of Broca's area?

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

Which structure regulates voluntary movement, motor learning, and coordination?

<p>Basal Ganglia (D)</p> Signup and view all the answers

What is the role of the PFC (Prefrontal Cortex)?

<p>Decision making and reasoning (D)</p> Signup and view all the answers

Which neurotransmitter is primarily associated with inhibitory functions in the brain?

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

How does the organization of V1 (primary visual cortex) primarily process visual information?

<p>Using vertical and horizontal line detection (C)</p> Signup and view all the answers

What does the term 'hyperpolarization' refer to in the context of action potentials?

<p>Cell potential drops below resting state (B)</p> Signup and view all the answers

Which area of the brain is responsible for fine motor skills and balance?

<p>Cerebellum (D)</p> Signup and view all the answers

What distinguishes the two pathways in the visual system: the ventral stream and the dorsal stream?

<p>The dorsal stream focuses on 'what' while the ventral stream emphasizes 'where/how' (C)</p> Signup and view all the answers

Which type of neuron connects sensory and motor neurons within the brain and spinal cord?

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

What process describes the method of cleaning up neurotransmitters left in the synaptic cleft?

<p>Reuptake (D)</p> Signup and view all the answers

What characterizes the lateral geniculate nucleus (LGN) in the visual processing pathway?

<p>Processes multiple aspects of vision (D)</p> Signup and view all the answers

Which type of attention involves consciously looking for a specific stimulus in the environment?

<p>Top-down attention (C)</p> Signup and view all the answers

Which structure is associated with memory formation and retrieval in the limbic system?

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

What does the sodium-potassium pump do in the context of neuron function?

<p>Maintains resting membrane potential (C)</p> Signup and view all the answers

Flashcards

Cerebrocerebellum

The part of the cerebellum responsible for planning and initiating movement.

Spinocerebellum

The part of the cerebellum responsible for correcting limb positioning during movement.

Vestibulocerebellum

The part of the cerebellum responsible for balance and posture.

Cerebellar Peduncles

Bundles of fibers connecting the cerebellum to the brain and spinal cord for communication.

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Superior Cerebellar Peduncle (SCP)

The output pathway from the cerebellum to the midbrain, responsible for fine-tuning voluntary movement.

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Middle Cerebellar Peduncle (MCP)

The input pathway from the pons to the cerebellum, responsible for processing planned movement versus actual execution.

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Inferior Cerebellar Peduncle (ICP)

The input pathway from the spinal cord and medulla to the cerebellum, responsible for sensory information and output related to balance and posture.

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Brainstem

The part of the brainstem responsible for relaying sensory and motor signals, and integrating motor commands from higher levels.

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High Levels of Motor Control

The highest levels of motor control, including the motor cortex, basal ganglia, and cerebellum.

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Lower Levels of Motor Control

The lowest levels of motor control, primarily the spinal cord.

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Neuroplasticity

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

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Declarative Memory

A type of memory that involves the conscious recall of facts and events.

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Episodic Memory

A type of declarative memory that stores personal experiences, such as your first day of school or a special birthday.

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Semantic Memory

A type of declarative memory that stores general knowledge and facts, such as the capital of France or the formula for water.

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Implicit Memory

A type of memory that involves unconscious learning and remembering, such as skills, habits, and conditioned responses.

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Procedural Memory

A type of implicit memory that stores how to perform tasks and actions, such as riding a bike or playing the piano.

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Priming

A type of implicit memory that involves unconscious influence of a stimulus on later responses.

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Long Term Potentiation (LTP)

A process that strengthens the connections between neurons, making it easier for them to communicate.

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Attention

The ability to selectively concentrate on one aspect of the environment while ignoring others.

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Voluntary Attention (Top-Down)

A type of attention that is goal-directed and controlled.

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Involuntary Attention (Bottom-Up)

A type of attention that is triggered by a stimulus and involuntary.

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Cognitive Control

The intentional selection of thoughts, emotions, and behaviors; it involves the ability to suppress inappropriate responses and maintain focus on goals.

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Anterior Cingulate Cortex (ACC)

The part of the brain that plays a key role in cognitive control, particularly in managing conflict, error detection, and selecting the correct behavior.

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Wisconsin Card Sorting Test (WCST)

A test used to assess cognitive flexibility, working memory, and goal-directed behavior. The task requires participants to switch between different sorting rules based on color, shape, or number.

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Functional Magnetic Resonance Imaging (fMRI)

A neuroimaging technique used to study brain activity by detecting changes in blood flow, which are associated with neuronal activity.

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Study Notes

Overview of Attention

  • Attention is the cognitive process of selecting and concentrating on one aspect of the environment while ignoring others.
  • There are two types of attention: voluntary (controlled) and involuntary (uncontrolled).
  • Selective filtering, resource allocation, and shifting are crucial components of attention.

Types of Attention

  • Spatial Attention: Focusing on specific locations. Top-down attention is conscious searching, while bottom-up attention occurs when something grabs attention (like a friend calling your name).
  • Feature-Based Attention: Focusing on particular characteristics of stimuli (e.g., looking for a red shirt).
  • Object-Based Attention: Focusing on a specific object.
  • Sustained Attention: Maintaining focus over a long period.
  • Focused/Selective Attention: Concentrating on one stimulus while ignoring others.
  • Divided Attention: Attending to multiple stimuli at once. Often less efficient.
  • Executive Attention: Managing conflicts and distractions. Essential for task management.
  • Temporal Attention: Expecting something to happen at a specific time.

Brain Areas Involved in Attention

  • Frontal Lobes (PFC): Planning, prioritizing tasks, maintaining focus.
  • Parietal Lobes (Posterior Parietal Cortex): Shifting attention between stimuli.
  • Superior Colliculus (Midbrain): Rapid, bottom-up shifts of attention.
  • Thalamus (Pulvinar Nucleus): Filtering important stimuli.
  • Anterior Cingulate Cortex (ACC): Managing conflicts and irrelevant stimuli.
  • Visual Cortex: Feature-based attention.
  • Ventral Attention Network: Primarily in the right hemisphere, reacts proactively to unexpected events.
  • Dorsal Attention Network: Goal-directed, choosing what to focus on.

Cognitive Control

  • Cognitive control is the intentional selection of thoughts, emotions, and behaviors.
  • It involves suppressing inappropriate behaviors and focusing on relevant stimuli.
  • The prefrontal cortex (PFC) is critical for cognitive control.

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