Cognitive Function and Emotional Possessing in Bilateral Facial Palsy

Pilot Study Assessing Cognitive Function and Emotional Possessing in Patients With Bilateral Facial Palsy

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT02179450

Enrollment

Registered

2014-07-01

Start date

2012-08-31

Completion date

2013-12-31

Last updated

2014-07-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Emotion, Intelligence

Brief summary

Based on recent findings that botulinum toxin injections in the cranial muscles might reduce emotional processing (Havas 2011), an increasing number of popular newspaper tabloids are suggesting a negative effect on cognition. The underlying research articles address the facial feedback hypothesis. The hypothesis indicates that expressive behaviour, including facial mimic expressions influences the subject's brain via feedback. (Alam 2008) Other systemic neurological diseases, e.g of inflammatory origin, may lead to temporary bilateral facial nerve palsy (BF). During recovery process, the palsy usually remits completely. The effect of bilateral facial muscle palsy on cognition and emotional possessing has never been evaluated. The results of this pilot study might provide new information about the effect bilateral facial palsy on emotional processing and cognition and the facial feedback hypothesis. The aim of this controlled pilot study is to assess cognitive function and emotional processing in patients with bilateral facial palsy. In addition, differences in cognitive function and emotional processing in patients with different manifestations of dystonia should be evaluated. According to the facial feedback theory, paralysed mimic muscles might alter emotional processing. Therefore, investigators compare patients with bilateral facial muscle palsy and healthy controls. Investigators expect no influence of facial muscle palsy on cognitive functions in any of the tested groups; the investigators expect a mild impairment of emotional processing only in the patients group with bilateral facial muscle palsy (BEB and BF). In addition, the investigators expect no difference in emotional processing in patients with different manifestations of dystonia (BEB and CD) at remission. There might be a slight difference of emotional processing in patients with different manifestations of dystonia (BEB and CD) at time of prominent facial palsy.

Interventions

None listed

Study design

Observational model

CASE_CONTROL

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 80 Years

Healthy volunteers

Yes

Inclusion criteria

Patients: * willing to participate in this pilot trial * bilateral facial palsy * age 18-80 years Control: * willing to participate in this pilot trial * age, * gender and * education (duration of school attendance) matched * and/or cervical dystonia

Exclusion criteria

* neurological or psychiatric comorbidity * psychotropic drugs

Design outcomes

Primary

Measure	Time frame	Description
I-S-T-2000R- (intelligence-structure-test 2000R)	up to four weeks	Test to evaluate Intelligence * Subtest Matrixes * Subtest Analogies

Secondary

Measure	Time frame	Description
Beck's depression-inventory-II	up to four weeks	Evaluation of depression (BDI-II; Hautzinger et al., 2009)
Apathy Evaluation Scale	up to four weeks	Evaluation of apathy (AES; Luecken et al., 2006)

Countries

Austria

Outcome results