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Isu Jo

Sungkyunkwan University · Psychology

About the Lab

Professor Isu Jo's research lab focuses on developmental psychology, with a central emphasis on the interplay between bilingualism, cognitive development, and aging. The lab investigates how language experience shapes executive functioning and theory of mind across the lifespan, particularly in children and older adults. It also explores cross-cultural differences in cognitive development and prosocial behavior, especially in the context of sociocultural and environmental stressors such as the COVID-19 pandemic. A key theme is disentangling the roles of cognitive control, empathy, and social decision-making in shaping prosocial and cooperative behaviors.

bilingualismexecutive functioningagingtheory of mindprosocial behavior

Research Overview

Papers
29
Total Citations
312
Papers (5y)
17
Primary Field
Psychology

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
17total
2022
2023
2024
2025
2026
Citations per year (5y)
53total
20222023202420252026

Selected Papers

15
1
Review|130 citations·2021
The Bilingual Advantage in Children’s Executive Functioning Is Not Related to Language Status: A Meta-Analytic Review
Cassandra J. Lowe, Isu Cho, Samantha F. Goldsmith, J. Bruce Morton
SJR Q1Psychological ScienceOA

There is considerable debate about whether bilingual children have an advantage in executive functioning relative to monolingual children. In the current meta-analysis, we addressed this debate by comprehensively reviewing the available evidence. We synthesized data from published studies and unpublished data sets, which equated to 1,194 effect sizes from 10,937 bilingual and 12,477 monolingual participants between the ages of 3 and 17 years. Bilingual language status had a small overall effect

Developmental and Educational PsychologyPsychology
2
Article|34 citations·2021
Six-month-olds’ ability to use linguistic cues when interpreting others’ pointing actions
Isu Cho, Yoonha Lee, Hyun-Joo Song
SJR Q2Infant Behavior and Development
Developmental and Educational PsychologyPsychology
3
Article|32 citations·2021
Aging, Empathy, and Prosocial Behaviors During the COVID-19 Pandemic
Isu Cho, Ryan T. Daley, Tony J. Cunningham, Elizabeth A. Kensinger, Angela Gutchess
SJR Q1The Journals of Gerontology Series BOA

OBJECTIVES: Previous literature suggests age-related increases in prosociality. Does such an age-prosociality relationship occur during the coronavirus disease 2019 (COVID-19) pandemic, or might the pandemic-as a stressor that may differently influence young and older adults-create a boundary condition on the relationship? If so, can empathy, a well-known prosocial disposition, explain the age-prosociality relationship? This study investigated these questions and whether the target (distant othe

Neuropsychology and Physiological PsychologyPsychology
4
Article|32 citations·2019
Explaining age-related decline in theory of mind: Evidence for intact competence but compromised executive function
Isu Cho, Adam Cohen
SJR Q1PLoS ONEOA

Previous studies suggest theory of mind (ToM) ability declines with age. However, prior tasks not only required ToM competence but also imposed high executive function (EF) demands, so decline in ToM ability could be caused by deterioration in ToM competence, EF, or both. It was predicted that if the elderly have intact ToM competence but compromised EF, then they should perform similarly to younger adults when using ToM tasks that lower executive demands, such as spontaneous-response tasks. Res

Cognitive NeuroscienceNeuroscience
5
Article|13 citations·2023
Culture, executive functions, and academic achievement
Isu Cho, Niki Hosseini‐Kamkar, Hyun-Joo Song, J. Bruce Morton
SJR Q2Frontiers in PsychologyOA

Although it is well known that children of East Asian immigrants show higher academic achievement than native-born North American children, the social-cognitive determinants of this difference remain poorly understood. Given the importance of executive functions (EF) for academic achievement, and evidence that EF develops more quickly in East Asian compared to North American cultures, it is conceivable that differences in academic achievement might be rooted in EF differences between these group

EducationSocial Sciences
6
Review|12 citations·2023
Memory and aging across cultures
Angela Gutchess, Isu Cho
SJR Q1Current Opinion in PsychologyOA
Social PsychologyPsychology
7
Article|11 citations·2021
Disentangling language status and country-of-origin explanations of the bilingual advantage in preschoolers
Isu Cho, Jewan Park, Hyun-Joo Song, J. Bruce Morton
SJR Q1Journal of Experimental Child PsychologyOA

Bilingual preschoolers from East Asia outperform monolingual preschoolers from North America or Europe in executive functioning tasks, which has been interpreted as evidence of a bilingual advantage in executive functioning. This study tested whether these differences actually reflect country-of-origin effects given that East Asian preschoolers frequently outperform North American or European children in executive functioning tasks. Consistent with previous findings, Korean-English bilingual pre

Developmental and Educational PsychologyPsychology
8
Article|11 citations·2020
Older adults consider others’ intentions less but allocentric outcomes more than young adults during an ultimatum game.
Isu Cho, Hyun-Joo Song, Hackjin Kim, Sunhae Sul
SJR Q1Psychology and Aging

The present research investigated age-related differences in other-regarding preferences-the preference for taking others' benefit into account during social decision-making-between young and elderly adults. Young and older Korean adults responded to multiple rounds of a mini-ultimatum game, and the extent to which each individual considered outcome and intention was quantified using economic utility models. We found that older adults, compared to young adults, were less likely to consider other

Social PsychologyPsychology
9
Article|8 citations·2024
Cross-cultural comparison of the neural correlates of true and false memory retrieval
Krystal R. Leger, Isu Cho, Ioannis Valoumas, Danielle Schwartz, R. W. Mair, Joshua Oon Soo Goh, Angela Gutchess
SJR Q1MemoryOA

Prior work has shown Americans have higher levels of memory specificity than East Asians. Neuroimaging studies have not investigated mechanisms that account for cultural differences at retrieval. In this study, we use fMRI to assess whether mnemonic discrimination, distinguishing novel from previously encountered stimuli, accounts for cultural differences in memory. Fifty-five American and 55 Taiwanese young adults completed an object recognition paradigm testing discrimination of old targets, s

Cognitive NeuroscienceNeuroscience
10
Article|6 citations·2021
Aging, Empathy, and Prosocial Behaviors During the COVID-19 Pandemic
Isu Cho, Ryan T. Daley, Tony J. Cunningham, Elizabeth A. Kensinger, Angela Gutchess
SJR Q1Innovation in AgingOA

Abstract Previous literature has shown age-related increases in prosociality (i.e., the tendency to engage in behaviors that benefit others). Can such age-related differences be observed during the COVID-19 pandemic, or would young adults’ higher levels of COVID-19-related stress alter the relation between age and prosociality given the prior findings that stress may promote prosocial behaviors? Can empathy, one of the factors highly related to prosociality, explain any observed age-related diff

Clinical PsychologyPsychology
11
Article|6 citations·2022
Intent-Based Moral Judgment in Old Age
Francesco Margoni, Isu Cho, Angela Gutchess
SJR Q1The Journals of Gerontology Series BOA

OBJECTIVES: Recent studies support the idea of an intent-to-outcome shift in moral judgments with age. We further assessed whether a reduced reliance on intentions is associated with aging in a preregistered study with 73 younger (20-41 years) and 79 older (70-84 years) adults, group-matched on education level. METHOD: Participants were presented with a set of moral cases to evaluate, created by varying orthogonally the valence (neutral, negative) of the information regarding the agent's intenti

Cognitive NeuroscienceNeuroscience
12
Article|4 citations·2024
How age and culture influence cognition: A lifespan developmental perspective
Isu Cho, Angela Gutchess
SJR Q1Developmental ReviewOA
Neuropsychology and Physiological PsychologyPsychology
13
Article|3 citations·2022
Reasoning about mental states under uncertainty
Isu Cho, Nellie Kamkar, Niki Hosseini‐Kamkar
SJR Q1PLoS ONEOA

Theory of Mind (ToM), the ability to infer the mental states of others, is integral to facilitating healthy social interactions. People can reason about the mental states of others even with limited or (sometimes) inconsistent information. However, little is known about how people make inferences about the mental states of others under uncertainty, and what features of information are important in aiding mental state reasoning. In the current study, we conducted three unique experiments that alt

Developmental and Educational PsychologyPsychology
14
Article|2 citations·2025
How age and culture impact the neural correlates of memory retrieval
Isu Cho, Krystal R. Leger, Ioannis Valoumas, R. W. Mair, Joshua Oon Soo Goh, Angela Gutchess
SJR Q1Cognitive Affective & Behavioral NeuroscienceOA
Cognitive NeuroscienceNeuroscience
15
Article|2 citations·2023
Empathy, memory, and aging during the COVID-19 pandemic
Isu Cho, Tony J. Cunningham, Ryan T. Daley, Elizabeth A. Kensinger, Angela Gutchess
SJR Q1Current Research in Ecological and Social PsychologyOA

Recently, there has been increasing attention to the interaction between empathy and memory. During the COVID-19 pandemic, a period when empathy played a key role in people's behaviors, we assessed the relationship between empathy and memory. In this pre-registered report, we used memory accuracy for the number of COVID-19 cases as a measure of recent memory and examined its relationship with trait empathy. Moreover, we investigated whether cognitive vs. affective empathy differently associate w

Clinical PsychologyPsychology

Research Areas

Cognitive NeuroscienceNeuropsychology and Physiological PsychologyDevelopmental and Educational PsychologySocial PsychologyClinical PsychologyEducation

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