Patient Information about Epilepsy & Seizures. Epilepsy, or seizure disorder, is a chronic neurological condition caused by abnormal brain cell activity. Epilepsy is characterized by recurrent seizuresâhaving one seizure does not necessarily mean that a person has epilepsy.
(1971) â¢ Discriminability was measured by an increase in sucking rate toa second speech sound after habituation to the first sound. â¢ Recovery from habituation was greater when the two stimuli were from different adult phonemiccategories than when they were from the same category. Eimas et al.1971) reported that infants, like adults, demonstrate categorical ppp p perception for speech sounds. To explain this they proposed that infants are equipped with innate, speech-specific, phoneticfeature detectors tuned to the range of phonetic contrasts used in the worldâs languages.
Cells of the innate system respond to pathogens in a very general, generic way. Their response does not change, regardless of the type of pathogen involved. Another key feature of the innate immune response is that it has no memory, and it cannot trigger the development of memory. The innate response is, in evolutionary terms, a much older defense system than the adaptive response â plants, fungi, insects, and more primitive multicellular organisms have innate immune defense systems.