Abnormality of EEG Alpha Asymmetry Adolescent Suicide Attempters in Female

نویسندگان

  • Flemming Graae
  • Craig Tenke
  • Gerard Bruder
  • Mary-Jane Rotheram
  • John Piacentini
  • David Castro-Blanco
  • Paul Leite
  • James Towey
چکیده

Abnormal electroencephalographic (EEG) activity has been associated with various psychiatric disorders and behaviors, including depression, suicide, and aggression. We examined quantitative resting EEG in Hispanic female adolescent suicide attempters and matched normal controls. Computerized EEG measures were recorded at 11 scalp sites during eyes open and eyes closed periods from 16 suicide attempters and 22 normal controls. Suicide attempters differed from normal controls in alpha asymmetry. Normal adolescents had greater alpha (less activation) over right than left hemisphere, whereas suicidal adolescents had a nonsignificant asymmetry in the opposite direction. Nondepressed attempters were distinguished from depressed attempters in that they accounted for the preponderance of abnormal asymmetry, particularly in posterior regions. Alpha asymmetry over posterior regions was related to ratings of suicidal intent, but not depression severity. The alpha asymmetry in suicidal adolescents resembled that seen for depressed adults in its abnormal direction, but not in its regional distribution. Findings for suicidal adolescents are discussed in terms of a hypothesis of reduced left posterior activation, which is not related to depression but to suicidal or aggressive behavior.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The characteristics of serious suicide attempters in Japanese adolescents- comparison study between adolescents and adults

BACKGROUND Suicide is the leading cause of death among Japanese adolescents, and they may commit suicide differently from adults. However, there are few studies in medical-based data concerning adolescent patients seriously attempting suicide. We aimed to explore the characteristics of serious suicide attempts in Japanese adolescents, comparing them with those in adults. METHODS We investigat...

متن کامل

The comparison of alpha power, peak alpha frequency, frontal alpha asymmetry between irritable bowel syndrome and healthy people

Irritable bowel syndrome (IBS) is a chronic functional gastrointestinal disorder that is characterized by abdominal pain or discomfort and changed intestinal habits. The aim of This study was the comparison of features of brain oscillations in alpha frequency band by using rest-electroencephalography (EEG) between patients with IBS and healthy control. 11 IBS patients (7 female and 4 male) and ...

متن کامل

Psychosocial factors associated with urban adolescent female suicide attempts.

This study identified psychosocial factors that differentiated 19 adolescent female suicide attempters from 21 demographically similar nonattempters in a low income, urban area. Adolescents and their parents independently completed questionnaires and participated in structured and semistructured interviews. Attempters expressed significantly higher levels of suicidal ideation and were described...

متن کامل

Identifying differences between depressed adolescent suicide ideators and attempters.

BACKGROUND Adolescent depression and suicide are pressing public health concerns, and identifying key differences among suicide ideators and attempters is critical. The goal of the current study is to test whether depressed adolescent suicide attempters report greater anhedonia severity and exhibit aberrant effort-cost computations in the face of uncertainty. METHODS Depressed adolescents (n=...

متن کامل

بررسی ویژگی‌های جمعیت شناختی اقدام‌کنندگان به خودکشی مراجعه کننده به اورژانس‌های شهر کرج در سال 1382

    Background & Aim: Following the increasing rate of suicide and its outcomes in recent decades, WHO introduced its attempt to decrease suicide rate as one of its aims in world health program by 2000. As a part of multinational project of World Health Organization, this study was undertaken to determine demographic characteristics of suicide attempters attending emergency ward of Karaj Hospit...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004