Biomedical subjects

Susanne Mayr

Publications and source records attributed to Susanne Mayr.

6 recordsLinked to original sources

PubMed2006

Clinical outcome of partial ethmoidectomy for chronic rhinosinusitis.

Since its introduction endoscopic sinus surgery (ESS) for the treatment of chronic rhinosinusitis (CRS) has been focused on the management of the ethmoids, differentiating between partial and total ethmoidectomy. The classification of the underlying process of ethmoiditis and the selection of the adequate surgical procedure are still open questions. The aim of this investigation was to evaluate a minimally invasive ESS procedure. We present a retrospective analysis of 112 cases of bilateral circumscribed ethmoiditis after partial ethmoidectomy performed by a single surgeon investigated by questionnaires and endoscopic follow-up. A comparison of symptoms and the subjective judgment of the patients before and after surgery showed that postoperative subjective scores of nasal obstruction and rhinorrhea improved in up to 90%, with no distinct differences between primary intervention (n=98) and revision (n=14). Ninety percent of all patients considered surgery successful. Signs of active rhinosinusitis were found in less then 20% of patients after partial ethmoidectomy. This demonstrates that partial ethmoidectomy is an effective treatment for CRS affecting only part of the ethmoid.

Chronic Disease↗

PubMed2006

Evidence for episodic retrieval of inadequate prime responses in auditory negative priming.

Four experiments are reported in which the mechanisms underlying auditory negative priming were investigated. In Experiments 1A and 1B, preprime-prime intervals and prime-probe intervals were manipulated. The ratio between the 2 intervals determined the size of the negative priming effect. Results are compatible with the episodic retrieval account, according to which the retrieval of inappropriate response information associated with the previous distractor slows down responding when that stimulus becomes the target. Experiment 2 tested a variant of this account, according to which the retrieval of the prime response rather than the retrieval of nonresponse information interferes with responding. Consistent with this variant, participants erroneously responded with the prime response more frequently in the ignored repetition condition than in the control condition. Experiment 3 replicated this finding and generalized it to the visual modality. The authors conclude that the retrieval of the inappropriate prime response is a determinant of the negative priming phenomenon.

Adult↗

PubMed2004

Auditory negative priming in younger and older adults.

Two experiments are reported in which performance of old and young adults in an auditory negative priming task was compared. Auditory negative priming was not smaller in old than in young adults. This result was independent of whether or not conditions were present that had previously been assumed to favour episodic retrieval, as opposed to inhibitory processes, as a basis of the negative priming phenomenon. The data from the present auditory negative priming experiments are incompatible with the global assumption that the efficiency of inhibitory attentional processes in general diminishes across the adult life span.

Adult↗

PubMed2004

Endoscopic sinus surgery: its subjective medium-term outcome in chronic rhinosinusitis.

OBJECTIVE: The subjective success of endoscopic sinus surgery (ESS) for chronic rhinosinusitis has been reported mainly after short-term follow-up studies, but may change with increasing time after surgery. We assessed in a retrospective study the medium-term clinical outcome of ESS as complete ethmoidectomy or pansinus surgery in 208 patients with chronic rhinosinusitis. PATIENTS AND METHODS: The senior author performed the surgeries according to his techniques. We used a questionnaire focusing on nasal obstruction, rhinorrhea, nasal dryness/crusts, sneezing, headache, smell, numbness in cheeks and lips, ear pressure, epiphora, and sore throat. Additionally the subjective influence of sinus surgery on asthma, bronchitis and allergic diseases was evaluated. The mean follow-up was 3.1 years. RESULTS: Overall success was reported by 92% of all patients. Forty-one percent of all patients with complete ethmoidectomy and 32% of all patients with pansinus surgery described complete resolution of complaints. No differences in clinical success rates were noted when comparing primary surgery or revision. A favorable effect was also reported for asthma, bronchitis and allergic diseases. CONCLUSION: Improvements for nasal symptoms and coexisting complaints are demonstrated with a mean observation period of more than 3 years. The value of ESS is underlinedfor the treatment of patients with chronic rhinosinusitis.

Adolescent↗

PubMed2003

ERP correlates of auditory negative priming.

Negative priming refers to slowed down reactions when the distractor on one trial becomes the target on the next. Following two popular accounts, the effect might be due either to inhibitory processes associated with the frontal cortex, or to an ambiguity in the retrieval of episodic information. We used event-related brain potentials (ERPs) to identify the processing stage primarily associated with negative priming. In an auditory categorization task, reactions in negative priming trials were compared to reactions in a standard control (unrelated primes and probes) and a repetition control (attended prime=ignored probe) condition. Reactions were slower for negative priming than for standard control (Delta32 ms) and repetition control trials (Delta64 ms). The corresponding ERP effect was reflected in an attenuation of a sustained parietal positivity extending from 300 to 600 ms. Because corresponding ERP components were found to be sensitive to stimulus recognition and familiarity, the results may be interpreted to support an episodic retrieval account of negative priming.

Adult↗

PubMed2003

Auditory, visual, and cross-modal negative priming.

Auditory, visual, and cross-modal negative priming was investigated using a task in which participants judged whether stimuli were animals or musical instruments. Negative priming was observed, but only if the attended and the ignored primes evoked different responses. This pattern--negative priming after conflict, but not after nonconflict, primes--was demonstrated with visual stimuli and replicated with auditory stimuli, as well as across modalities, both auditory to visual and visual to auditory. Implications for theories of negative priming are discussed.

Adolescent↗