Results suggest differential abnormal brain responses associated with specific aspects of empathic functioning in ASD and CD/CU+. Decreased amygdala responses in ASD and CD/CU+ might point to impaired emotion processing in both disorders, whereas reduced vmPFC responses suggest problems in processing cognitive aspects of empathy in ASD. Reduced IFG/AI responses, finally, suggest decreased emotional resonance in CD/CU+.

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We have characterized a de novo complex rearrangement of the long arm of chromosome 7 in a female patient with moderate mental retardation (MR), anxiety disorder, and autistic features. G-banding suggested a de novo paracentric inversion 46,XX,inv(7)(q31.3q34). However, SNP-array analysis, showed a +/-10 Mb, 7q21.11-q21.3 deletion in the paternal chromosome. Subsequent FISH analysis with BAC/PAC clones in the 7q21-q35 region confirmed this deletion. However, the expected paracentric inversion turned out to be an intra-chromosomal insertion of the 7q31.31-q35 fragment into band 7q21.3, disrupting the predicted gene C7orf58 in band 7q31.31. Seven other patients have been previously reported with a deletion of 7q21.1-q21.3. Although there is an overlap in phenotype between our patient and these patients, none of them has been described with anxiety disorder and/or autistic features. Therefore we suggest that disruption of the C7orf58 gene might contribute to the anxiety disorder, and autistic features in our patient.

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