Table 2. Performance of Möbius participants on the imagery tasks in comparison to matched control groups.

	Normal IQ					Older Low-IQ		Younger Low-IQ
	Controls	MB1	MB3	MB4	MB6	Controls	MB2	Controls	MB5
Expression imagery	24.25 (2.60)	18	23	21	25	22.13 (2.03)	16*	24.25 (2.82)	22
Object imagery	19.13 (1.30)	16	14*	17	18	18.25 (1.28)	14*	18.13 (0.83)	18

‘Higher IQ’ refers to Möbius participants and aged-matched controls with IQs within the higher range; ‘Older Low-IQ’ refers to the control group matched to MB2 according to age, IQ and gender; and ‘Younger Low-IQ’ refers to the control group matched to MB5 on the same measures.

^*Represents impaired performance.