BACKGROUND: Our goal was to identify brain structures involved in anticipatory anxiety in panic disorder (PD) patients compared to control subjects. METHODS: Seventeen PD patients and 21 healthy control subjects were studied with H(2)(15)O positron emission tomography scan, before and after a pentagastrin challenge. RESULTS: During anticipatory anxiety we found hypoactivity in the precentral gyrus, the inferior frontal gyrus, the right amygdala, and the anterior insula in PD patients compared to control subjects. Hyperactivity in patients compared to control subjects was observed in the parahippocampal gyrus, the superior temporal lobe, the hypothalamus, the anterior cingulate gyrus, and the midbrain. After the challenge, the patients showed decreases compared to the control subjects in the precentral gyrus, the inferior frontal gyrus, and the anterior insula. Regions of increased activity in the patients compared to the control subjects were the parahippocampal gyrus, the superior temporal lobe, the anterior cingulate gyrus, and the midbrain. CONCLUSIONS: The pattern of regional cerebral blood flow activations and deactivations we observed both before and after the pentagastrin challenge was the same, although different in intensity. During anticipatory anxiety more voxels were (de)activated than during rest after the challenge.
BACKGROUND: Our goal was to identify brain structures involved in anticipatory anxiety in panic disorder (PD) patients compared to control subjects. METHODS: Seventeen PDpatients and 21 healthy control subjects were studied with H(2)(15)O positron emission tomography scan, before and after a pentagastrin challenge. RESULTS: During anticipatory anxiety we found hypoactivity in the precentral gyrus, the inferior frontal gyrus, the right amygdala, and the anterior insula in PDpatients compared to control subjects. Hyperactivity in patients compared to control subjects was observed in the parahippocampal gyrus, the superior temporal lobe, the hypothalamus, the anterior cingulate gyrus, and the midbrain. After the challenge, the patients showed decreases compared to the control subjects in the precentral gyrus, the inferior frontal gyrus, and the anterior insula. Regions of increased activity in the patients compared to the control subjects were the parahippocampal gyrus, the superior temporal lobe, the anterior cingulate gyrus, and the midbrain. CONCLUSIONS: The pattern of regional cerebral blood flow activations and deactivations we observed both before and after the pentagastrin challenge was the same, although different in intensity. During anticipatory anxiety more voxels were (de)activated than during rest after the challenge.
Authors: Thomas Dresler; Anne Guhn; Sara V Tupak; Ann-Christine Ehlis; Martin J Herrmann; Andreas J Fallgatter; Jürgen Deckert; Katharina Domschke Journal: J Neural Transm (Vienna) Date: 2012-06-13 Impact factor: 3.575
Authors: C M Sylvester; M Corbetta; M E Raichle; T L Rodebaugh; B L Schlaggar; Y I Sheline; C F Zorumski; E J Lenze Journal: Trends Neurosci Date: 2012-06-02 Impact factor: 13.837
Authors: Leonie Brinkmann; Christine Buff; Paula Neumeister; Sara V Tupak; Michael P I Becker; Martin J Herrmann; Thomas Straube Journal: Hum Brain Mapp Date: 2017-01-10 Impact factor: 5.038
Authors: Larry Sandberg; Fredric Busch; Franklin Schneier; Andrew Gerber; Eve Caligor; Barbara Milrod Journal: Harv Rev Psychiatry Date: 2012 Sep-Oct Impact factor: 3.732
Authors: Philip L Johnson; William Truitt; Stephanie D Fitz; Pamela E Minick; Amy Dietrich; Sonal Sanghani; Lil Träskman-Bendz; Andrew W Goddard; Lena Brundin; Anantha Shekhar Journal: Nat Med Date: 2009-12-27 Impact factor: 53.440