Applicability of tactile memory examination as an option to visual- and verbal-based batteries

ABSTRACT The validity and applicability of tactile battery tests for the diagnosis and medical follow-up of patients with Alzheimer’s disease and other dementia syndromes do not have their usefulness well understood in clinical practice. While haptic abilities in older individuals receive less attention, in earlier stages of human life they are well focused on. There are even fewer studies on tactile memory, including episodic memory of demented individuals with or without sensorial limitations. The applicability of a new haptic memory battery was evaluated in patients with Alzheimer’s disease with mild or moderate commitment. Objective: The aim of this study is to apply a battery based on tactile perception, recognition, and recollection of everyday objects in patients with Alzheimer’s disease, testing tactile delayed recall memory discrimination and late recognition to compare validated visual and verbal tests. Methods: Tactile-, visual-, and verbal-based memory performance was registered in 21 patients diagnosed with Alzheimer’s disease. Results: Except for tactile identification, it showed that there was a close relationship between the three sensory modalities of memory, with an apparent better performance of tactile incidental memory and recognition compared with the test with pictures. Conclusions: The haptic evaluation of memory demonstrated applicability in the evaluation of memory dysfunction in patients with Alzheimer’s disease. Further studies are needed to establish the sensibility and specificity of the proposed test that had a small sample size and many limitations.

Prologue

The prologue explores the author’s personal connection with crafting through the heirlooms her own Jewish American family has passed down in the twentieth century, including a matzah cover and a wedding canopy. Using her grandmother’s kitschy mid-twentieth century needlepoint of a rabbi as a starting point, it lays out emotional resonance carried by tactility. Tactile memory is a central part of American Judaism.

Tactile memory Ranschburg effects under conditions of concurrent articulation

In a single experiment, we investigate the Ranschburg effect for tactile stimuli. Employing an immediate serial recall (ISR) procedure, participants recalled sequences of six rapidly presented finger stimulations by lifting their fingers in the order of original stimulation. Within-sequence repetition of an item separated by two intervening items resulted in impaired recall for the repeated item (the Ranschburg effect), thus replicating the findings of Roe et al. Importantly, this impairment persisted with concurrent articulation, suggesting that the Ranschburg effect is not reliant upon verbal recoding. These data illustrate that the Ranschburg effect is evident beyond verbal memory and further suggest commonality in process for both tactile and verbal order memory.

A stone that feels right in the hand: Tactile memory, the abduction of agency and presence of the past

This article is a theoretical and ethnographic exploration of the possibility of ‘touching the past’. Drawing on fieldwork from Newfoundland, Canada, and in conversation with Gell’s Art and Agency (1998), it focuses on the process of abduction whereby, in their discovery and handling, pieces of stone become artefacts that index the presence of an absent other. It is argued that through this tactile process of becoming an artefactual index, the distinction between past and present is momentarily dissolved, enfolded into the fit between stone and hand, giving rise to the possibility of historical sensation and the feeling of pastness.

Tactile Memory

Autoethnographic sketching allows for examination of various elements of lived experience. This article focuses on tactile memory.

An all-solution-processed tactile memory flexible device integrated with a NiO ReRAM

A platform of an all-solution-processed tactile memory flexible device is developed using a NiO ReRAM operated by a threshold switching mechanism.