theory of the mind

UNDERSTANDING OTHER MINDS PSGY1006 - Developmental Psychology

  • Instructor: Dr Olivia Jewell

CAN YOU READ MY MIND?

OVERVIEW

  • Objectives of the lecture include:

    • Exploring the concept of ‘Theory of Mind’

    • Measuring Theory of Mind

    • The developmental timeline of Theory of Mind

    • Factors influencing Theory of Mind development

LEARNING OBJECTIVES

  • At the conclusion of the lecture:

    • Understand what psychologists refer to as ‘Theory of Mind’.

    • Critically evaluate research methodologies used to study Theory of Mind.

    • Describe the developmental trajectory of Theory of Mind using evidence.

WHAT IS THEORY OF MIND?

  • Definition:

    • Theory of Mind (ToM): The ability to attribute mental states to oneself and others.

    • Mental states include:

      • Thoughts

      • Beliefs

      • Intentions

      • Desires

      • Knowledge

DIFFERENT EXAMPLES OF THEORY OF MIND

  • Strategies to understand the content of other minds include:

    • Tracking the history of others' beliefs.

    • Making inferences about mental states from observable actions.

    • Adopting another's perspective to view their reality.

WHY IS THEORY OF MIND USEFUL?

  • Core features of social cognition include:

    • Predicting others' future actions and behaviors.

    • Reasoning about past actions.

    • Effective communication with others.

    • Feeling empathy for others.

    • Deceiving others and detecting deception.

    • Navigating social interactions, including gift purchasing, and avoiding offense.

UNIQUELY HUMAN? APES

  • Evidence from non-human primates:

    • Can assess others' visual perspectives.

    • Use this understanding to make food competition decisions.

    • Decisions are influenced by group dominance (Hare et al., 2000).

UNIQUELY HUMAN? BIRDS

  • Findings regarding Western Scrub-Jays:

    • Cache food and pilfer caches of others.

    • Re-cache food based on whether they were observed (Dally et al., 2006).

UNIQUELY HUMAN?

  • Controversy surrounding animal Theory of Mind:

    • Studied perspective-taking abilities could differ in depth compared to humans.

    • Includes examining conflicting beliefs, desires, and intentions.

    • Need for effective study methods (Krupenye & Call, 2019).

BELIEFS

  • According to Dennett (1978), beliefs predict individuals' behaviors.

TRUE BELIEFS

  • Ability to predict actions based on inferred beliefs:

    • Predictions can be made either directly from behavior or inferred from belief itself.

    • Young children may base inferences on their own knowledge.

FALSE BELIEFS

  • Example: Angie’s false belief about chocolate location contradicts the observer's knowledge.

  • Requires recognition and representation of her belief separate from one’s own opinion.

UNEXPECTED TRANSFER TEST (WIMMER & PERNER, 1983)

  • Investigates children's responses to belief-related questions:

    • Key questions about Maxi's chocolate lead to performance differences at various ages.

    • Findings indicate only 3-year-olds fail belief questions while 4-year-olds begin to succeed.

DECEPTIVE BOX TEST (GOPNIK & ASTINGTON, 1988)

  • Tests understanding of misleading appearances:

    • Questions require children to navigate their understanding of others' beliefs.

    • Results show younger children generally fail to predict correctly.

EXPLICIT OR IMPLICIT TASKS

  • Explicit Tasks: Children declare the contents of another's mind openly.

  • Implicit Tasks: Assess behavioral clues indicative of awareness of others' minds.

UNEXPECTED PREFERENCE TEST

  • Result: 18-month-olds recognized differing preferences; younger 14-month-olds did not (Repacholi & Gopnik, 1997).

UNDERSTANDING DECEPTION

  • Importance of comprehension in deceiving others:

    • Indicates awareness of other minds and perspectives.

DECEPTION FINDINGS

  • Evidence:

    • 3-year-olds convincingly lied about forbidden actions (Lewis et al, 1989).

    • Young children destroy evidence of wrongdoing to prevent detection (Chandler et al, 1989).

    • Children modified contents in familiar containers to mislead experimenters (Sullivan & Winner, 1993).

WHEN DOES THEORY OF MIND DEVELOP?

A RAPID CONCEPTUAL SHIFT?

  • Evidence suggests rapid acquisition of the concept of ‘belief’ around age four:

    • Predictions include consistency in various studies and clear performance in older children.

UNEXPECTED TRANSFER TEST- REVISITED

  • Adjustments in testing improved 3-year-old performance:

    • Keeping the protagonist in the room and engaging children during search phases.

    • Success rates rose significantly (Rubio-Fernandez & Geurts, 2013).

DECEPTIVE BOX TEST - MAILING PROCEDURE (MITCHELL & LACOHEE, 1991)

  • Findings demonstrated improved results in understanding misleading contents in alternative testing methods:

    • 60% of 3-year-olds answered correctly.

CONTINUOUS OR STAGE-LIKE?

  • Debate exists about the nature of Theory of Mind development:

    • Previous views suggested dramatic changes at age 4.

    • Methodological adjustments might lead to improved performance outcomes among younger children.

    • Meta-analysis supports a significant age-related shift in performance (Wellman et al, 2001).

WHAT INFLUENCES THEORY OF MIND DEVELOPMENT?

CULTURE

  • Development rates are consistent across cultures, though timing varies:

    • There is evidence for universal stage-like development but different onset times (Liu et al, 2008).

PARENTING

  • Factors such as:

    • Single parenting and economic hardships relate to poorer Theory of Mind performance (Cole & Mitchell, 1998).

    • Explaining psychological causality is associated with better outcomes (Dunn et al, 1991).

FAMILY SIZE

  • Advantages for children with siblings in passing false belief tests compared to single children (Perner et al, 1994).

  • Extended families similarly contribute to advantages in Theory of Mind (Lewis et al, 1996).

SUMMARY

  • Theory of Mind involves recognizing that others possess thoughts, beliefs, intentions, and desires different from one's own.

  • Various methodologies highlight different aspects of Theory of Mind development.

  • A potential shift around age 4 may be influenced by testing methods rather than a strict developmental milestone.

  • Implicit measures indicate early Theory of Mind abilities, affected by environmental variables.

FURTHER ACTIVITIES

  • Worksheets: Summarize sections of the lecture succinctly.

  • Video reviews: Watch Task videos and fill out related tables.

  • Recommended reading: Mitchell & Zeigler – Chapter 5 on children's understanding of the mind.