Eligibility Criteria:
People affected by AN
Inclusion Criteria:
* Female;
* age between 18 and 55 years old;
* diagnosis of AN (restrictive and binge-purging type\*), as per DSM V criteria (APA, 2013);
* BMI ≤ 17,5 Kg/m2;
* right-handed (i.e. Edinburgh Handedness Inventory (EHI) (Veale, 2014)).
* Restricting type: During the last 3 months, the individual has not engaged in recurrent episodes of binge eating or purging behaviour (i.e. self-induced vomiting or the misuse of laxatives, diuretics, or enemas). This subtype describes presentations in which weight loss is accomplished primarily through dieting, fasting, and/or excessive exercise.
* Binge-eating/purging type: During the last 3 months, the individual has engaged in recurrent episodes of binge eating or purging behaviour (i.e. self-induced vomiting or the misuse of laxatives, diuretics, or enemas).
Exclusion criteria:
* presence of motor impairments, such as: motor disorders, broken limbs, inability to move, amputation of limbs, etc… because of the nature of the tasks - see the section Mental Motor Chronometry (MMC) Task Hands and Feet and Whole Body;
* presence of neurological deficits, motor disorders, or somatosensory perception disorders (e.g. peripheral neuropathy); previous head injury;
* schizophrenia spectrum disorders and other psychotic disorders on an acute phase;
* pregnancy;
* heavy use of medication because of acute symptoms.
People affected by BN
Inclusion Criteria:
* female;
* age between 18 and 55 years old;
* diagnosis of BN, as per DSM V criteria (APA, 2013);
* BMI ≤ 17,5 Kg/m2 or BMI ≥ 30 Kg/m2;
* right-handed (i.e. EHI (Veale, 2014)).
Exclusion criteria:
* presence of motor impairments, such as: motor disorders, broken limbs, inability to move, amputation of limbs, etc… because of the nature of the tasks - see the section Mental Motor Chronometry (MMC) Task Hands and Feet and Whole Body;
* presence of neurological deficits, motor disorders, or somatosensory perception disorders (e.g. peripheral neuropathy); previous head injury;
* schizophrenia spectrum disorders and other psychotic disorders on an acute phase;
* pregnancy;
* heavy use of medication because of acute symptoms.
HCs - enrolled voluntarily
Inclusion Criteria:
* female;
* age between 18 and 55 years old;
* right-handed (i.e. EHI (Veale, 2014)).
Exclusion criteria:
* history of eating disorders or obesity in the past 5 years and currently;
* BMI ≤ 17,5 Kg/m2 or BMI ≥ 30 Kg/m2;
* presence of motor impairments, such as: motor disorders, broken limbs, inability to move, amputation of limbs, etc… because of the nature of the tasks - see the section Mental Motor Chronometry (MMC) Task Hands and Feet and Whole Body;
* presence of neurological deficits, motor disorders, or somatosensory perception disorders (e.g. peripheral neuropathy); previous head injury;
* schizophrenia spectrum disorders and other psychotic disorders on an acute phase;
* pregnancy;
* heavy use of medication because of acute symptoms.
Comparability between the four groups (AN restrictive vs AN binge-purging vs BN vs HCs) in terms of age and education will be guaranteed.