User profiles for Sayamwong H. Hammack

Sayamwong E. Hammack

Professor of Psychological Science, University of Vermont
Verified email at uvm.edu
Cited by 5779

Freewheel running prevents learned helplessness/behavioral depression: role of dorsal raphe serotonergic neurons

…, HEW Day, J Campisi, SH Hammack… - Journal of …, 2003 - Soc Neuroscience
Serotonin (5-HT) neurons in the dorsal raphe nucleus (DRN) are implicated in mediating
learned helplessness (LH) behaviors, such as poor escape responding and expression of …

Differential expression of intrinsic membrane currents in defined cell types of the anterolateral bed nucleus of the stria terminalis

SE Hammack, I Mania… - Journal of …, 2007 - journals.physiology.org
The anterolateral group of the bed nucleus of the stria terminalis (BNST ALG ) plays a critical
role in a diverse array of behaviors, although little is known of the physiological properties …

Overlapping neurobiology of learned helplessness and conditioned defeat: implications for PTSD and mood disorders

SE Hammack, MA Cooper, KR Lezak - Neuropharmacology, 2012 - Elsevier
Exposure to traumatic events can increase the risk for major depressive disorder (MDD) as
well as posttraumatic stress disorder (PTSD), and pharmacological treatments for these …

Chronic stress increases pituitary adenylate cyclase-activating peptide (PACAP) and brain-derived neurotrophic factor (BDNF) mRNA expression in the bed nucleus of …

SE Hammack, J Cheung, KM Rhodes… - …, 2009 - Elsevier
Exposure to chronic stress has been argued to produce maladaptive anxiety-like behavioral
states, and many of the brain regions associated with stressor responding also mediate …

Corticotropin releasing hormone type 2 receptors in the dorsal raphe nucleus mediate the behavioral consequences of uncontrollable stress

SE Hammack, MJ Schmid, ML LoPresti… - Journal of …, 2003 - Soc Neuroscience
Uncontrollable shock produces a constellation of behavioral changes that are not observed
after equivalent escapable shock. These include interference with escape and potentiation …

The response of neurons in the bed nucleus of the stria terminalis to serotonin: implications for anxiety

SE Hammack, JD Guo, R Hazra, J Dabrowska… - Progress in Neuro …, 2009 - Elsevier
Substantial evidence has suggested that the activity of the bed nucleus of the stria terminalis
(BNST) mediates many forms of anxiety-like behavior in human and non-human animals. …

[HTML][HTML] Pituitary adenylate cyclase-activating peptide in the bed nucleus of the stria terminalis mediates stress-induced reinstatement of cocaine seeking in rats

…, AK Linden, V May, ME Bouton, SE Hammack - …, 2018 - nature.com
Stressors often contribute to difficulties in maintaining behavior change following a period of
abstinence, and may play a significant role in drug relapse. The activation of pituitary …

Roles for pituitary adenylate cyclase-activating peptide (PACAP) expression and signaling in the bed nucleus of the stria terminalis (BNST) in mediating the behavioral …

SE Hammack, CW Roman, KR Lezak… - Journal of molecular …, 2010 - Springer
Anxiety disorders are frequently long-lasting and debilitating for more than 40 million American
adults. Although stressor exposure plays an important role in the etiology of some anxiety …

Parallel signaling pathways of pituitary adenylate cyclase activating polypeptide (PACAP) regulate several intrinsic ion channels

…, V May, RL Parsons, SE Hammack - Annals of the New …, 2019 - Wiley Online Library
… Often, T-type calcium currents work in concert with I H to maintain net depolarizing inward
current following deactivation of I H .32 Given these complementary roles, T-type channels are …

Stress-induced glucocorticoid signaling remodels neurovascular coupling through impairment of cerebrovascular inwardly rectifying K+ channel function

…, DC Hill-Eubanks, SE Hammack… - Proceedings of the …, 2014 - National Acad Sciences
Studies of stress effects on the brain have traditionally focused on neurons, without considering
the cerebral microcirculation. Here we report that stress impairs neurovascular coupling (…