PSY 304 Attention Lecture Recordings

Chapter 1: Introduction

  • Selective Attention

    • Definition: The process by which we focus on certain information while ignoring others.

    • Negative Attention: Refers to our ability to choose what to ignore.

  • Bottleneck Approaches

    • Represents how attention filters information.

    • Metaphorical Explanation: Like a narrow neck of a bottle that limits the information we can process at one time.

  • Dichotic Listening Task

    • Not part of any specific theory but helps develop theories of attention by demonstrating how we can process information selectively.

Chapter 2: Attention to Letter

  • Spotlight Approaches of Attention

    • Concept: Uses the metaphor of a spotlight to illustrate visual attention, where we focus on specific information within a visual field.

    • Models under spotlight approaches:

      • Spotlight Model: Attention illuminates a specific area, creating different levels of clarity based on the focus (center, fringe, and margin).

      • Zoom Lens Theory: Suggests flexibility in the size of the spotlight; can enlarge to take in more information or shrink to focus on less.

      • Multiple Spotlight Theory: Proposes the ability to split attention among multiple areas.

  • Experiment by Posner

    • Series of valid and invalid trials to test reaction times based on attention direction indicated by arrows.

  • Overview of experiments measuring processing speed relative to spotlight size, confirming inverse relationships between spotlight size and processing speed.

Chapter 3: Selective Attention Theories

  • Overview of Selective Attention

    • Ability to prioritize relevant stimuli while ignoring distractions.

  • Criticism of Spotlight Approaches

    • Studies show visual attention might be object-based rather than strictly location-based (e.g., the basketball scene experiment).

Chapter 4: Using Dual Task Performance Show

  • Explanation of Divided Attention and Split Attention

    • Split Attention: Focus on one task and then switch to another.

    • Divided Attention: Engaging in multiple tasks simultaneously.

  • Performance Implications in Dual Task Settings

    • Generally leads to decreased performance in at least one task; affected by task nature, difficulty, and participant experience.

Chapter 5: Dual Task Performance

  • Explanation of a study by Shapiro and Shipper (1977)

    • Participants must remember target stimuli and detect it amidst distractors.

    • The study shows improvement with practice and highlights dual-task performance limitations.

Chapter 6: Simulated Driving Task

  • Attention Under Real-Life Conditions

    • Uses of attention studies in apps like driving to illustrate effects of distractions on performance.

    • Studies show a significant drop in performance when multitasking.

Chapter 7: Feature Integration Theory (FIT)

  • Understanding the Relationship between Attention and Perception

    • FIT states that attention is necessary for binding features into our perception.

    • Two phases:

      • Pre-attentive Stage: Automatic analysis of features.

      • Focused Attention Stage: Combining features for coherent perception.

  • Evidence: Illusory conjunctions and conjunction search tasks illustrate issues in feature binding.

Chapter 8: Conclusion

  • Summary of Key Concepts

    • Differentiation between change blindness and inattentional blindness.

    • Importance of attention in cognitive processes and everyday functioning.

  • Note on Research Opportunity

    • Opportunity for students to engage in research regarding visual spatial processing in Alzheimer’s disease.

Important Considerations

  • Key Concepts to Remember

    • Selective vs. Divided Attention

    • Attention failures in real-life scenarios (e.g., distracted driving)

    • Applications of dual-task performance in cognitive psychology.


Attention Failures

Attention failures occur when individuals are unable to focus on important information or when they misallocate their attention. Here are key points regarding attention failures:

  • Types of Attention Failures:

    • Change Blindness: The inability to notice changes in a visual scene, even when they occur.

    • Inattentional Blindness: Failing to notice an unexpected stimulus in one's visual field while focusing on another task.

  • Real-Life Scenarios:

    • Distracted Driving: A common example where drivers fail to see critical road signs or obstacles due to focusing on secondary tasks (e.g., mobile phone use).

    • Multitasking Effects: Engaging in multiple tasks can lead to significantly decreased performance in one or more tasks due to divided attention.

  • **Implications