The other common symptoms of CFS include arthralgia, myalgia, adenopathy, exacerbation of allergic responses, intermittent fever, postexertional fatigue, and depressed mood.
Continuous reinforcement schedules provide a reinforcement for every correct response, while intermittent reinforcement schedules reinforce some responses but not others.
(The human brain's eager response to intermittent rewards is well known and explains much of the appeal of sports like golf, where the memory and feeling of one good shot maintains players' interest even though they are hacking around dreadfully most of the time).
In the cases of positive photo-paroxysmal response, the intermittent photic stimulation evokes headache and they can also have visually induced seizures (Table 1) [2].
We know of only one study in photosensitive subjects with a photo-paroxysmal response to intermittent photic stimulation where increased VEP amplitude was correlated with spread of the paroxysmal EEG activity to more anterior brain areas [63].
The purpose of this study was to determine the immunoreactivity of selected structural proteins in the preterm and near-term ovine fetal brain and the response to intermittent umbilical cord occlusion as a measure of altered cellular growth.
We here tested whether the response to intermittent theta-burst stimulation (iTBS) – an effective repetitive transcranial magnetic stimulation (rTMS) protocol for increasing cortical excitability – depends on network properties of the cortical motor system.
This conclusion was reached by Millet et al. [62] after studying the response of intermittent isometric unilateral knee extensions to failure with and without blood flow restriction (BFR, via a cuff), in N and while breathing a reduced O2 air (NH of 11%FiO2and84%84% SaO2).
The authors also suggested that the observed changes might be attributable to differences in the response to intermittent stress (migraine attacks) or to differential effects of gonadal hormones (testosterone versus estradiol or progesterone) on hippocampal function and brain circuitry [4, 6].
This study was undertaken to determine the extent of necrotic cell death as a measure of neurologic injury in the preterm and near-term ovine fetal brain in response to intermittent umbilical cord occlusion (UCO) with severe, but limited hypoxia and no cumulative acidosis to ensure longer-term survival.
