| I-You | Simple relations | • Characteristics of Deictic Relations: Identifies situations based on the speaker’s interpersonal perspective (“I” vs. “you )• Perspective Shifting: Remains within the speaker’s own perspective without perspective shifting. | [Antecedent] After simultaneously presenting the child with visual cards and a verbal scenario involving I-You relations. (Note: Visual cards were removed after the initial session.)[Scenario] I have a pencil, and you have a block.[Discriminative Stimulus & Target Behavior] The child provides a correct vocal response within 5 seconds to the researcher’s questions:“What do I have?”and “What do you have? |
| Reversed relations | • Characteristics of Deictic Relations: Responds to interpersonal relations based on reversed contextual cues (e.g.,“if I were you”), requiring transformation of interpersonal perspective.• Perspective Shifting: Shifts flexibly between self and other perspectives according to contextual reversal cues. | [Antecedent] After simultaneously presenting the child with visual cards and a verbal scenario involving I-You relations. (Note: Visual cards were removed after the initial session.)[Scenario] I am looking at a picture of a lion, and you are looking at a picture of a dog.[Discriminative Stimulus & Target Behavior] The child provides a correct vocal response within 5 seconds to the researcher’s questions:“If I were you, what would I be looking at?”and“If you were me, what would you be looking at?” |
| Here-There | Simple relations | • Characteristics of Deictic Relations: Identifies situations based on the speaker’s spatial perspective (“here” vs. “there ).• Perspective Shifting: Remains within the speaker’s current spatial perspective without perspective shifting. | [Antecedent] After simultaneously presenting the child with visual cards and a verbal scenario involving Here-There relations. (Note: Visual cards were removed after the initial session.)[Scenario] I am sitting here on the chair, and the toy pig is sitting there on the desk.[Discriminative Stimulus & Target Behavior] The child provides a correct vocal response within 5 seconds to the researcher’s questions:“Where am I sitting?”and“Where is the toy pig sitting? |
| Reversed relations | • Characteristics of Deictic Relations: Responds to spatial relations based on reversed contextual cues (e.g.,“if here were there”), requiring transformation of spatial perspective.• Perspective Shifting: Shifts flexibly between spatial perspectives according to contextual reversal cues. | [Antecedent] After simultaneously presenting the child with visual cards and a verbal scenario involving Here-There relations. (Note: Visual cards were removed after the initial session.)[Scenario] I am hiding here behind the curtain, and you are hiding there behind the blackboard.[Discriminative Stimulus & Target Behavior] The child provides a correct vocal response within 5 seconds to the researcher’s questions: “If here were there, where would I be hiding?” and “If there were here, where would you be hiding?” |
| Now-Then | Simple relations | • Characteristics of Deictic Relations: Identifies the situation based on the speaker’s temporal perspective (‘Now’ vs. ‘Then’).• Perspective Shifting: Remains within the speaker’s present temporal perspective without perspective shifting. | [Antecedent] After simultaneously presenting the child with visual cards representing ‘Now’ and ‘Then’ and a verbal scenario involving Now-Then relations. (Note: Visual cards were removed after the initial session.)[Scenario] I ate a sweet potato in the morning, and I ate Gimbap for lunch.[Discriminative Stimulus & Target Behavior] The child provides a correct vocal response within 5 seconds to the researcher’s questions:“What did I eat in the morning?”and“What did I eat for lunch?” |
| Reversed relations | • Characteristics of Deictic Relations: Responds to temporal relations based on reversed contextual cues (e.g., “if then were now”), requiring transformation of temporal perspective.• Shifts flexibly between present and past temporal perspectives according to contextual reversal cues. | [Antecedent] After simultaneously presenting the child with visual cards representing ‘Now’ and ‘Then’ and a verbal scenario involving Now-Then relations. (Note: Visual cards were removed after the initial session.)[Scenario] You went to the office a moment ago, and now you are in the OO room.[Discriminative Stimulus & Target Behavior] The child provides a correct vocal response within 5 seconds to the researcher’s questions:“If then were now, where would you be now?”and“If now were then, where would you be then? |